diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesClient.java
index 8b3b93a19..4eb7aab47 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AcceleratorTypesSettings acceleratorTypesSettings =
  *     AcceleratorTypesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AcceleratorTypesSettings acceleratorTypesSettings =
  *     AcceleratorTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * AcceleratorTypesClient acceleratorTypesClient =
@@ -163,8 +172,11 @@ public AcceleratorTypesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, AcceleratorTypesScopedList> element :
@@ -190,8 +202,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   AggregatedListAcceleratorTypesRequest request =
    *       AggregatedListAcceleratorTypesRequest.newBuilder()
@@ -225,8 +240,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   AggregatedListAcceleratorTypesRequest request =
    *       AggregatedListAcceleratorTypesRequest.newBuilder()
@@ -259,8 +277,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   AggregatedListAcceleratorTypesRequest request =
    *       AggregatedListAcceleratorTypesRequest.newBuilder()
@@ -300,8 +321,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -332,8 +356,11 @@ public final AcceleratorType get(String project, String zone, String accelerator
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   GetAcceleratorTypeRequest request =
    *       GetAcceleratorTypeRequest.newBuilder()
@@ -359,8 +386,11 @@ public final AcceleratorType get(GetAcceleratorTypeRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   GetAcceleratorTypeRequest request =
    *       GetAcceleratorTypeRequest.newBuilder()
@@ -385,8 +415,11 @@ public final UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType> getCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -413,8 +446,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   ListAcceleratorTypesRequest request =
    *       ListAcceleratorTypesRequest.newBuilder()
@@ -446,8 +482,11 @@ public final ListPagedResponse list(ListAcceleratorTypesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   ListAcceleratorTypesRequest request =
    *       ListAcceleratorTypesRequest.newBuilder()
@@ -479,8 +518,11 @@ public final UnaryCallable<ListAcceleratorTypesRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
    *   ListAcceleratorTypesRequest request =
    *       ListAcceleratorTypesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesSettings.java
index 044c93f93..93e513ce8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AcceleratorTypesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AcceleratorTypesSettings.Builder acceleratorTypesSettingsBuilder =
  *     AcceleratorTypesSettings.newBuilder();
  * acceleratorTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         acceleratorTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         acceleratorTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AcceleratorTypesSettings acceleratorTypesSettings = acceleratorTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesClient.java
index 1ee3405c4..2d70effde 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (AddressesClient addressesClient = AddressesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AddressesSettings addressesSettings =
  *     AddressesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AddressesSettings addressesSettings =
  *     AddressesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * AddressesClient addressesClient = AddressesClient.create(addressesSettings);
@@ -159,8 +168,11 @@ public AddressesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, AddressesScopedList> element :
@@ -186,8 +198,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   AggregatedListAddressesRequest request =
    *       AggregatedListAddressesRequest.newBuilder()
@@ -220,8 +235,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListAddressesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   AggregatedListAddressesRequest request =
    *       AggregatedListAddressesRequest.newBuilder()
@@ -254,8 +272,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListAddressesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   AggregatedListAddressesRequest request =
    *       AggregatedListAddressesRequest.newBuilder()
@@ -294,8 +315,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListAddressesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -327,8 +351,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   DeleteAddressRequest request =
    *       DeleteAddressRequest.newBuilder()
@@ -357,8 +384,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteAddressRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   DeleteAddressRequest request =
    *       DeleteAddressRequest.newBuilder()
@@ -386,8 +416,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteAddressRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   DeleteAddressRequest request =
    *       DeleteAddressRequest.newBuilder()
@@ -413,8 +446,11 @@ public final UnaryCallable<DeleteAddressRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -445,8 +481,11 @@ public final Address get(String project, String region, String address) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   GetAddressRequest request =
    *       GetAddressRequest.newBuilder()
@@ -472,8 +511,11 @@ public final Address get(GetAddressRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   GetAddressRequest request =
    *       GetAddressRequest.newBuilder()
@@ -498,8 +540,11 @@ public final UnaryCallable<GetAddressRequest, Address> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -531,8 +576,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   InsertAddressRequest request =
    *       InsertAddressRequest.newBuilder()
@@ -561,8 +609,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertAddressRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   InsertAddressRequest request =
    *       InsertAddressRequest.newBuilder()
@@ -590,8 +641,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertAddressRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   InsertAddressRequest request =
    *       InsertAddressRequest.newBuilder()
@@ -617,8 +671,11 @@ public final UnaryCallable<InsertAddressRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -645,8 +702,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   ListAddressesRequest request =
    *       ListAddressesRequest.newBuilder()
@@ -678,8 +738,11 @@ public final ListPagedResponse list(ListAddressesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   ListAddressesRequest request =
    *       ListAddressesRequest.newBuilder()
@@ -710,8 +773,11 @@ public final UnaryCallable<ListAddressesRequest, ListPagedResponse> listPagedCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AddressesClient addressesClient = AddressesClient.create()) {
    *   ListAddressesRequest request =
    *       ListAddressesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesSettings.java
index 462863490..95ac9c897 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AddressesSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AddressesSettings.Builder addressesSettingsBuilder = AddressesSettings.newBuilder();
  * addressesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         addressesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         addressesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AddressesSettings addressesSettings = addressesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersClient.java
index b8e6048ed..43a06942f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AutoscalersSettings autoscalersSettings =
  *     AutoscalersSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AutoscalersSettings autoscalersSettings =
  *     AutoscalersSettings.newBuilder().setEndpoint(myEndpoint).build();
  * AutoscalersClient autoscalersClient = AutoscalersClient.create(autoscalersSettings);
@@ -160,8 +169,11 @@ public AutoscalersStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, AutoscalersScopedList> element :
@@ -187,8 +199,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   AggregatedListAutoscalersRequest request =
    *       AggregatedListAutoscalersRequest.newBuilder()
@@ -222,8 +237,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   AggregatedListAutoscalersRequest request =
    *       AggregatedListAutoscalersRequest.newBuilder()
@@ -256,8 +274,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   AggregatedListAutoscalersRequest request =
    *       AggregatedListAutoscalersRequest.newBuilder()
@@ -297,8 +318,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -330,8 +354,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   DeleteAutoscalerRequest request =
    *       DeleteAutoscalerRequest.newBuilder()
@@ -360,8 +387,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteAutoscalerR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   DeleteAutoscalerRequest request =
    *       DeleteAutoscalerRequest.newBuilder()
@@ -389,8 +419,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteAutoscalerR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   DeleteAutoscalerRequest request =
    *       DeleteAutoscalerRequest.newBuilder()
@@ -417,8 +450,11 @@ public final UnaryCallable<DeleteAutoscalerRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -450,8 +486,11 @@ public final Autoscaler get(String project, String zone, String autoscaler) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   GetAutoscalerRequest request =
    *       GetAutoscalerRequest.newBuilder()
@@ -478,8 +517,11 @@ public final Autoscaler get(GetAutoscalerRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   GetAutoscalerRequest request =
    *       GetAutoscalerRequest.newBuilder()
@@ -504,8 +546,11 @@ public final UnaryCallable<GetAutoscalerRequest, Autoscaler> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -537,8 +582,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   InsertAutoscalerRequest request =
    *       InsertAutoscalerRequest.newBuilder()
@@ -567,8 +615,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertAutoscalerR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   InsertAutoscalerRequest request =
    *       InsertAutoscalerRequest.newBuilder()
@@ -596,8 +647,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertAutoscalerR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   InsertAutoscalerRequest request =
    *       InsertAutoscalerRequest.newBuilder()
@@ -623,8 +677,11 @@ public final UnaryCallable<InsertAutoscalerRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -651,8 +708,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   ListAutoscalersRequest request =
    *       ListAutoscalersRequest.newBuilder()
@@ -684,8 +744,11 @@ public final ListPagedResponse list(ListAutoscalersRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   ListAutoscalersRequest request =
    *       ListAutoscalersRequest.newBuilder()
@@ -716,8 +779,11 @@ public final UnaryCallable<ListAutoscalersRequest, ListPagedResponse> listPagedC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   ListAutoscalersRequest request =
    *       ListAutoscalersRequest.newBuilder()
@@ -756,8 +822,11 @@ public final UnaryCallable<ListAutoscalersRequest, AutoscalerList> listCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -790,8 +859,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   PatchAutoscalerRequest request =
    *       PatchAutoscalerRequest.newBuilder()
@@ -822,8 +894,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchAutoscalerReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   PatchAutoscalerRequest request =
    *       PatchAutoscalerRequest.newBuilder()
@@ -853,8 +928,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchAutoscalerReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   PatchAutoscalerRequest request =
    *       PatchAutoscalerRequest.newBuilder()
@@ -881,8 +959,11 @@ public final UnaryCallable<PatchAutoscalerRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -914,8 +995,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   UpdateAutoscalerRequest request =
    *       UpdateAutoscalerRequest.newBuilder()
@@ -945,8 +1029,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateAutoscalerR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   UpdateAutoscalerRequest request =
    *       UpdateAutoscalerRequest.newBuilder()
@@ -975,8 +1062,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateAutoscalerR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
    *   UpdateAutoscalerRequest request =
    *       UpdateAutoscalerRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersSettings.java
index 60a046061..c48a87e0f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/AutoscalersSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AutoscalersSettings.Builder autoscalersSettingsBuilder = AutoscalersSettings.newBuilder();
  * autoscalersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         autoscalersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         autoscalersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AutoscalersSettings autoscalersSettings = autoscalersSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsClient.java
index da3c41edc..ab3019ca6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
  *   String project = "project-309310695";
  *   String backendBucket = "backendBucket713751966";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendBucketsSettings backendBucketsSettings =
  *     BackendBucketsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendBucketsSettings backendBucketsSettings =
  *     BackendBucketsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * BackendBucketsClient backendBucketsClient = BackendBucketsClient.create(backendBucketsSettings);
@@ -159,8 +168,11 @@ public BackendBucketsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -196,8 +208,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   AddSignedUrlKeyBackendBucketRequest request =
    *       AddSignedUrlKeyBackendBucketRequest.newBuilder()
@@ -227,8 +242,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   AddSignedUrlKeyBackendBucketRequest request =
    *       AddSignedUrlKeyBackendBucketRequest.newBuilder()
@@ -256,8 +274,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   AddSignedUrlKeyBackendBucketRequest request =
    *       AddSignedUrlKeyBackendBucketRequest.newBuilder()
@@ -285,8 +306,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -315,8 +339,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   DeleteBackendBucketRequest request =
    *       DeleteBackendBucketRequest.newBuilder()
@@ -345,8 +372,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   DeleteBackendBucketRequest request =
    *       DeleteBackendBucketRequest.newBuilder()
@@ -373,8 +403,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   DeleteBackendBucketRequest request =
    *       DeleteBackendBucketRequest.newBuilder()
@@ -399,8 +432,11 @@ public final UnaryCallable<DeleteBackendBucketRequest, Operation> deleteCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -434,8 +470,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   DeleteSignedUrlKeyBackendBucketRequest request =
    *       DeleteSignedUrlKeyBackendBucketRequest.newBuilder()
@@ -465,8 +504,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   DeleteSignedUrlKeyBackendBucketRequest request =
    *       DeleteSignedUrlKeyBackendBucketRequest.newBuilder()
@@ -494,8 +536,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   DeleteSignedUrlKeyBackendBucketRequest request =
    *       DeleteSignedUrlKeyBackendBucketRequest.newBuilder()
@@ -524,8 +569,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -554,8 +602,11 @@ public final BackendBucket get(String project, String backendBucket) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   GetBackendBucketRequest request =
    *       GetBackendBucketRequest.newBuilder()
@@ -581,8 +632,11 @@ public final BackendBucket get(GetBackendBucketRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   GetBackendBucketRequest request =
    *       GetBackendBucketRequest.newBuilder()
@@ -607,8 +661,11 @@ public final UnaryCallable<GetBackendBucketRequest, BackendBucket> getCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   BackendBucket backendBucketResource = BackendBucket.newBuilder().build();
@@ -638,8 +695,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   InsertBackendBucketRequest request =
    *       InsertBackendBucketRequest.newBuilder()
@@ -669,8 +729,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   InsertBackendBucketRequest request =
    *       InsertBackendBucketRequest.newBuilder()
@@ -698,8 +761,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   InsertBackendBucketRequest request =
    *       InsertBackendBucketRequest.newBuilder()
@@ -724,8 +790,11 @@ public final UnaryCallable<InsertBackendBucketRequest, Operation> insertCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   for (BackendBucket element : backendBucketsClient.list(project).iterateAll()) {
@@ -750,8 +819,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   ListBackendBucketsRequest request =
    *       ListBackendBucketsRequest.newBuilder()
@@ -782,8 +854,11 @@ public final ListPagedResponse list(ListBackendBucketsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   ListBackendBucketsRequest request =
    *       ListBackendBucketsRequest.newBuilder()
@@ -814,8 +889,11 @@ public final UnaryCallable<ListBackendBucketsRequest, ListPagedResponse> listPag
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   ListBackendBucketsRequest request =
    *       ListBackendBucketsRequest.newBuilder()
@@ -853,8 +931,11 @@ public final UnaryCallable<ListBackendBucketsRequest, BackendBucketList> listCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -888,8 +969,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   PatchBackendBucketRequest request =
    *       PatchBackendBucketRequest.newBuilder()
@@ -919,8 +1003,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchBackendBucket
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   PatchBackendBucketRequest request =
    *       PatchBackendBucketRequest.newBuilder()
@@ -949,8 +1036,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchBackendBucket
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   PatchBackendBucketRequest request =
    *       PatchBackendBucketRequest.newBuilder()
@@ -976,8 +1066,11 @@ public final UnaryCallable<PatchBackendBucketRequest, Operation> patchCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -1016,8 +1109,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   SetEdgeSecurityPolicyBackendBucketRequest request =
    *       SetEdgeSecurityPolicyBackendBucketRequest.newBuilder()
@@ -1047,8 +1143,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   SetEdgeSecurityPolicyBackendBucketRequest request =
    *       SetEdgeSecurityPolicyBackendBucketRequest.newBuilder()
@@ -1076,8 +1175,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   SetEdgeSecurityPolicyBackendBucketRequest request =
    *       SetEdgeSecurityPolicyBackendBucketRequest.newBuilder()
@@ -1105,8 +1207,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   String project = "project-309310695";
    *   String backendBucket = "backendBucket713751966";
@@ -1139,8 +1244,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   UpdateBackendBucketRequest request =
    *       UpdateBackendBucketRequest.newBuilder()
@@ -1170,8 +1278,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   UpdateBackendBucketRequest request =
    *       UpdateBackendBucketRequest.newBuilder()
@@ -1199,8 +1310,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
    *   UpdateBackendBucketRequest request =
    *       UpdateBackendBucketRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsSettings.java
index 2ac788643..baee37ee5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendBucketsSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendBucketsSettings.Builder backendBucketsSettingsBuilder =
  *     BackendBucketsSettings.newBuilder();
  * backendBucketsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         backendBucketsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         backendBucketsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * BackendBucketsSettings backendBucketsSettings = backendBucketsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesClient.java
index b08fba1b6..9ff7d6c57 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
  *   String project = "project-309310695";
  *   String backendService = "backendService-1884714623";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendServicesSettings backendServicesSettings =
  *     BackendServicesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendServicesSettings backendServicesSettings =
  *     BackendServicesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * BackendServicesClient backendServicesClient =
@@ -163,8 +172,11 @@ public BackendServicesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -200,8 +212,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   AddSignedUrlKeyBackendServiceRequest request =
    *       AddSignedUrlKeyBackendServiceRequest.newBuilder()
@@ -231,8 +246,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   AddSignedUrlKeyBackendServiceRequest request =
    *       AddSignedUrlKeyBackendServiceRequest.newBuilder()
@@ -260,8 +278,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   AddSignedUrlKeyBackendServiceRequest request =
    *       AddSignedUrlKeyBackendServiceRequest.newBuilder()
@@ -290,8 +311,11 @@ public final OperationFuture<Operation, Operation> addSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, BackendServicesScopedList> element :
@@ -318,8 +342,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   AggregatedListBackendServicesRequest request =
    *       AggregatedListBackendServicesRequest.newBuilder()
@@ -354,8 +381,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   AggregatedListBackendServicesRequest request =
    *       AggregatedListBackendServicesRequest.newBuilder()
@@ -389,8 +419,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   AggregatedListBackendServicesRequest request =
    *       AggregatedListBackendServicesRequest.newBuilder()
@@ -430,8 +463,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -460,8 +496,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   DeleteBackendServiceRequest request =
    *       DeleteBackendServiceRequest.newBuilder()
@@ -490,8 +529,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   DeleteBackendServiceRequest request =
    *       DeleteBackendServiceRequest.newBuilder()
@@ -518,8 +560,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   DeleteBackendServiceRequest request =
    *       DeleteBackendServiceRequest.newBuilder()
@@ -544,8 +589,11 @@ public final UnaryCallable<DeleteBackendServiceRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -579,8 +627,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   DeleteSignedUrlKeyBackendServiceRequest request =
    *       DeleteSignedUrlKeyBackendServiceRequest.newBuilder()
@@ -610,8 +661,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   DeleteSignedUrlKeyBackendServiceRequest request =
    *       DeleteSignedUrlKeyBackendServiceRequest.newBuilder()
@@ -639,8 +693,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   DeleteSignedUrlKeyBackendServiceRequest request =
    *       DeleteSignedUrlKeyBackendServiceRequest.newBuilder()
@@ -668,8 +725,11 @@ public final OperationFuture<Operation, Operation> deleteSignedUrlKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -697,8 +757,11 @@ public final BackendService get(String project, String backendService) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   GetBackendServiceRequest request =
    *       GetBackendServiceRequest.newBuilder()
@@ -723,8 +786,11 @@ public final BackendService get(GetBackendServiceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   GetBackendServiceRequest request =
    *       GetBackendServiceRequest.newBuilder()
@@ -749,8 +815,11 @@ public final UnaryCallable<GetBackendServiceRequest, BackendService> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -788,8 +857,11 @@ public final BackendServiceGroupHealth getHealth(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   GetHealthBackendServiceRequest request =
    *       GetHealthBackendServiceRequest.newBuilder()
@@ -816,8 +888,11 @@ public final BackendServiceGroupHealth getHealth(GetHealthBackendServiceRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   GetHealthBackendServiceRequest request =
    *       GetHealthBackendServiceRequest.newBuilder()
@@ -845,8 +920,11 @@ public final BackendServiceGroupHealth getHealth(GetHealthBackendServiceRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   BackendService backendServiceResource = BackendService.newBuilder().build();
@@ -876,8 +954,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   InsertBackendServiceRequest request =
    *       InsertBackendServiceRequest.newBuilder()
@@ -907,8 +988,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   InsertBackendServiceRequest request =
    *       InsertBackendServiceRequest.newBuilder()
@@ -936,8 +1020,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   InsertBackendServiceRequest request =
    *       InsertBackendServiceRequest.newBuilder()
@@ -962,8 +1049,11 @@ public final UnaryCallable<InsertBackendServiceRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   for (BackendService element : backendServicesClient.list(project).iterateAll()) {
@@ -988,8 +1078,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   ListBackendServicesRequest request =
    *       ListBackendServicesRequest.newBuilder()
@@ -1020,8 +1113,11 @@ public final ListPagedResponse list(ListBackendServicesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   ListBackendServicesRequest request =
    *       ListBackendServicesRequest.newBuilder()
@@ -1052,8 +1148,11 @@ public final UnaryCallable<ListBackendServicesRequest, ListPagedResponse> listPa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   ListBackendServicesRequest request =
    *       ListBackendServicesRequest.newBuilder()
@@ -1092,8 +1191,11 @@ public final UnaryCallable<ListBackendServicesRequest, BackendServiceList> listC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -1128,8 +1230,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   PatchBackendServiceRequest request =
    *       PatchBackendServiceRequest.newBuilder()
@@ -1161,8 +1266,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   PatchBackendServiceRequest request =
    *       PatchBackendServiceRequest.newBuilder()
@@ -1192,8 +1300,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   PatchBackendServiceRequest request =
    *       PatchBackendServiceRequest.newBuilder()
@@ -1219,8 +1330,11 @@ public final UnaryCallable<PatchBackendServiceRequest, Operation> patchCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -1259,8 +1373,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   SetEdgeSecurityPolicyBackendServiceRequest request =
    *       SetEdgeSecurityPolicyBackendServiceRequest.newBuilder()
@@ -1290,8 +1407,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   SetEdgeSecurityPolicyBackendServiceRequest request =
    *       SetEdgeSecurityPolicyBackendServiceRequest.newBuilder()
@@ -1319,8 +1439,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   SetEdgeSecurityPolicyBackendServiceRequest request =
    *       SetEdgeSecurityPolicyBackendServiceRequest.newBuilder()
@@ -1349,8 +1472,11 @@ public final OperationFuture<Operation, Operation> setEdgeSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -1390,8 +1516,11 @@ public final OperationFuture<Operation, Operation> setSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   SetSecurityPolicyBackendServiceRequest request =
    *       SetSecurityPolicyBackendServiceRequest.newBuilder()
@@ -1422,8 +1551,11 @@ public final OperationFuture<Operation, Operation> setSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   SetSecurityPolicyBackendServiceRequest request =
    *       SetSecurityPolicyBackendServiceRequest.newBuilder()
@@ -1452,8 +1584,11 @@ public final OperationFuture<Operation, Operation> setSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   SetSecurityPolicyBackendServiceRequest request =
    *       SetSecurityPolicyBackendServiceRequest.newBuilder()
@@ -1482,8 +1617,11 @@ public final OperationFuture<Operation, Operation> setSecurityPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   String project = "project-309310695";
    *   String backendService = "backendService-1884714623";
@@ -1517,8 +1655,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   UpdateBackendServiceRequest request =
    *       UpdateBackendServiceRequest.newBuilder()
@@ -1549,8 +1690,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   UpdateBackendServiceRequest request =
    *       UpdateBackendServiceRequest.newBuilder()
@@ -1579,8 +1723,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
    *   UpdateBackendServiceRequest request =
    *       UpdateBackendServiceRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesSettings.java
index 4b9fafc1d..daef3992a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/BackendServicesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendServicesSettings.Builder backendServicesSettingsBuilder =
  *     BackendServicesSettings.newBuilder();
  * backendServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         backendServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         backendServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * BackendServicesSettings backendServicesSettings = backendServicesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesClient.java
index 1e4e339c9..62d757505 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesClient.java
@@ -41,8 +41,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DiskTypesSettings diskTypesSettings =
  *     DiskTypesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -92,8 +98,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DiskTypesSettings diskTypesSettings =
  *     DiskTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * DiskTypesClient diskTypesClient = DiskTypesClient.create(diskTypesSettings);
@@ -156,8 +165,11 @@ public DiskTypesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, DiskTypesScopedList> element :
@@ -183,8 +195,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   AggregatedListDiskTypesRequest request =
    *       AggregatedListDiskTypesRequest.newBuilder()
@@ -217,8 +232,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListDiskTypesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   AggregatedListDiskTypesRequest request =
    *       AggregatedListDiskTypesRequest.newBuilder()
@@ -251,8 +269,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListDiskTypesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   AggregatedListDiskTypesRequest request =
    *       AggregatedListDiskTypesRequest.newBuilder()
@@ -292,8 +313,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListDiskTypesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -325,8 +349,11 @@ public final DiskType get(String project, String zone, String diskType) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   GetDiskTypeRequest request =
    *       GetDiskTypeRequest.newBuilder()
@@ -353,8 +380,11 @@ public final DiskType get(GetDiskTypeRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   GetDiskTypeRequest request =
    *       GetDiskTypeRequest.newBuilder()
@@ -379,8 +409,11 @@ public final UnaryCallable<GetDiskTypeRequest, DiskType> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -407,8 +440,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   ListDiskTypesRequest request =
    *       ListDiskTypesRequest.newBuilder()
@@ -440,8 +476,11 @@ public final ListPagedResponse list(ListDiskTypesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   ListDiskTypesRequest request =
    *       ListDiskTypesRequest.newBuilder()
@@ -472,8 +511,11 @@ public final UnaryCallable<ListDiskTypesRequest, ListPagedResponse> listPagedCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
    *   ListDiskTypesRequest request =
    *       ListDiskTypesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesSettings.java
index b1556188e..675f4e70e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DiskTypesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DiskTypesSettings.Builder diskTypesSettingsBuilder = DiskTypesSettings.newBuilder();
  * diskTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         diskTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         diskTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * DiskTypesSettings diskTypesSettings = diskTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksClient.java
index 6dd3340f6..d479550bf 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (DisksClient disksClient = DisksClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DisksSettings disksSettings =
  *     DisksSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DisksSettings disksSettings = DisksSettings.newBuilder().setEndpoint(myEndpoint).build();
  * DisksClient disksClient = DisksClient.create(disksSettings);
  * }</pre>
@@ -159,8 +168,11 @@ public DisksStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -204,8 +216,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   AddResourcePoliciesDiskRequest request =
    *       AddResourcePoliciesDiskRequest.newBuilder()
@@ -238,8 +253,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   AddResourcePoliciesDiskRequest request =
    *       AddResourcePoliciesDiskRequest.newBuilder()
@@ -270,8 +288,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   AddResourcePoliciesDiskRequest request =
    *       AddResourcePoliciesDiskRequest.newBuilder()
@@ -300,8 +321,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, DisksScopedList> element :
@@ -327,8 +351,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   AggregatedListDisksRequest request =
    *       AggregatedListDisksRequest.newBuilder()
@@ -361,8 +388,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListDisksReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   AggregatedListDisksRequest request =
    *       AggregatedListDisksRequest.newBuilder()
@@ -395,8 +425,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListDisksReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   AggregatedListDisksRequest request =
    *       AggregatedListDisksRequest.newBuilder()
@@ -437,8 +470,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListDisksReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -476,8 +512,11 @@ public final OperationFuture<Operation, Operation> createSnapshotAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   CreateSnapshotDiskRequest request =
    *       CreateSnapshotDiskRequest.newBuilder()
@@ -511,8 +550,11 @@ public final OperationFuture<Operation, Operation> createSnapshotAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   CreateSnapshotDiskRequest request =
    *       CreateSnapshotDiskRequest.newBuilder()
@@ -544,8 +586,11 @@ public final OperationFuture<Operation, Operation> createSnapshotAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   CreateSnapshotDiskRequest request =
    *       CreateSnapshotDiskRequest.newBuilder()
@@ -575,8 +620,11 @@ public final UnaryCallable<CreateSnapshotDiskRequest, Operation> createSnapshotC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -606,8 +654,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   DeleteDiskRequest request =
    *       DeleteDiskRequest.newBuilder()
@@ -638,8 +689,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteDiskRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   DeleteDiskRequest request =
    *       DeleteDiskRequest.newBuilder()
@@ -669,8 +723,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteDiskRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   DeleteDiskRequest request =
    *       DeleteDiskRequest.newBuilder()
@@ -697,8 +754,11 @@ public final UnaryCallable<DeleteDiskRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -726,8 +786,11 @@ public final Disk get(String project, String zone, String disk) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   GetDiskRequest request =
    *       GetDiskRequest.newBuilder()
@@ -754,8 +817,11 @@ public final Disk get(GetDiskRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   GetDiskRequest request =
    *       GetDiskRequest.newBuilder()
@@ -781,8 +847,11 @@ public final UnaryCallable<GetDiskRequest, Disk> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -814,8 +883,11 @@ public final Policy getIamPolicy(String project, String zone, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   GetIamPolicyDiskRequest request =
    *       GetIamPolicyDiskRequest.newBuilder()
@@ -843,8 +915,11 @@ public final Policy getIamPolicy(GetIamPolicyDiskRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   GetIamPolicyDiskRequest request =
    *       GetIamPolicyDiskRequest.newBuilder()
@@ -873,8 +948,11 @@ public final UnaryCallable<GetIamPolicyDiskRequest, Policy> getIamPolicyCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -909,8 +987,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   InsertDiskRequest request =
    *       InsertDiskRequest.newBuilder()
@@ -943,8 +1024,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertDiskRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   InsertDiskRequest request =
    *       InsertDiskRequest.newBuilder()
@@ -976,8 +1060,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertDiskRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   InsertDiskRequest request =
    *       InsertDiskRequest.newBuilder()
@@ -1004,8 +1091,11 @@ public final UnaryCallable<InsertDiskRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1032,8 +1122,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   ListDisksRequest request =
    *       ListDisksRequest.newBuilder()
@@ -1065,8 +1158,11 @@ public final ListPagedResponse list(ListDisksRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   ListDisksRequest request =
    *       ListDisksRequest.newBuilder()
@@ -1097,8 +1193,11 @@ public final UnaryCallable<ListDisksRequest, ListPagedResponse> listPagedCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   ListDisksRequest request =
    *       ListDisksRequest.newBuilder()
@@ -1136,8 +1235,11 @@ public final UnaryCallable<ListDisksRequest, DiskList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1181,8 +1283,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   RemoveResourcePoliciesDiskRequest request =
    *       RemoveResourcePoliciesDiskRequest.newBuilder()
@@ -1214,8 +1319,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   RemoveResourcePoliciesDiskRequest request =
    *       RemoveResourcePoliciesDiskRequest.newBuilder()
@@ -1245,8 +1353,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   RemoveResourcePoliciesDiskRequest request =
    *       RemoveResourcePoliciesDiskRequest.newBuilder()
@@ -1276,8 +1387,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1313,8 +1427,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   ResizeDiskRequest request =
    *       ResizeDiskRequest.newBuilder()
@@ -1344,8 +1461,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(ResizeDiskRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   ResizeDiskRequest request =
    *       ResizeDiskRequest.newBuilder()
@@ -1374,8 +1494,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(ResizeDiskRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   ResizeDiskRequest request =
    *       ResizeDiskRequest.newBuilder()
@@ -1402,8 +1525,11 @@ public final UnaryCallable<ResizeDiskRequest, Operation> resizeCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1442,8 +1568,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   SetIamPolicyDiskRequest request =
    *       SetIamPolicyDiskRequest.newBuilder()
@@ -1470,8 +1599,11 @@ public final Policy setIamPolicy(SetIamPolicyDiskRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   SetIamPolicyDiskRequest request =
    *       SetIamPolicyDiskRequest.newBuilder()
@@ -1498,8 +1630,11 @@ public final UnaryCallable<SetIamPolicyDiskRequest, Policy> setIamPolicyCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1539,8 +1674,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   SetLabelsDiskRequest request =
    *       SetLabelsDiskRequest.newBuilder()
@@ -1571,8 +1709,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(SetLabelsDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   SetLabelsDiskRequest request =
    *       SetLabelsDiskRequest.newBuilder()
@@ -1602,8 +1743,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(SetLabelsDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   SetLabelsDiskRequest request =
    *       SetLabelsDiskRequest.newBuilder()
@@ -1630,8 +1774,11 @@ public final UnaryCallable<SetLabelsDiskRequest, Operation> setLabelsCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1671,8 +1818,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   TestIamPermissionsDiskRequest request =
    *       TestIamPermissionsDiskRequest.newBuilder()
@@ -1699,8 +1849,11 @@ public final TestPermissionsResponse testIamPermissions(TestIamPermissionsDiskRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (DisksClient disksClient = DisksClient.create()) {
    *   TestIamPermissionsDiskRequest request =
    *       TestIamPermissionsDiskRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksSettings.java
index 5aaead4f2..9957b5e0b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/DisksSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DisksSettings.Builder disksSettingsBuilder = DisksSettings.newBuilder();
  * disksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         disksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         disksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * DisksSettings disksSettings = disksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysClient.java
index d82256d3d..f28c0527c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
  *   String project = "project-309310695";
  *   String externalVpnGateway = "externalVpnGateway-1140582181";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ExternalVpnGatewaysSettings externalVpnGatewaysSettings =
  *     ExternalVpnGatewaysSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ExternalVpnGatewaysSettings externalVpnGatewaysSettings =
  *     ExternalVpnGatewaysSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ExternalVpnGatewaysClient externalVpnGatewaysClient =
@@ -162,8 +171,11 @@ public ExternalVpnGatewaysStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String externalVpnGateway = "externalVpnGateway-1140582181";
@@ -192,8 +204,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   DeleteExternalVpnGatewayRequest request =
    *       DeleteExternalVpnGatewayRequest.newBuilder()
@@ -222,8 +237,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   DeleteExternalVpnGatewayRequest request =
    *       DeleteExternalVpnGatewayRequest.newBuilder()
@@ -250,8 +268,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   DeleteExternalVpnGatewayRequest request =
    *       DeleteExternalVpnGatewayRequest.newBuilder()
@@ -277,8 +298,11 @@ public final UnaryCallable<DeleteExternalVpnGatewayRequest, Operation> deleteCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String externalVpnGateway = "externalVpnGateway-1140582181";
@@ -307,8 +331,11 @@ public final ExternalVpnGateway get(String project, String externalVpnGateway) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   GetExternalVpnGatewayRequest request =
    *       GetExternalVpnGatewayRequest.newBuilder()
@@ -334,8 +361,11 @@ public final ExternalVpnGateway get(GetExternalVpnGatewayRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   GetExternalVpnGatewayRequest request =
    *       GetExternalVpnGatewayRequest.newBuilder()
@@ -360,8 +390,11 @@ public final UnaryCallable<GetExternalVpnGatewayRequest, ExternalVpnGateway> get
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   ExternalVpnGateway externalVpnGatewayResource = ExternalVpnGateway.newBuilder().build();
@@ -391,8 +424,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   InsertExternalVpnGatewayRequest request =
    *       InsertExternalVpnGatewayRequest.newBuilder()
@@ -421,8 +457,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   InsertExternalVpnGatewayRequest request =
    *       InsertExternalVpnGatewayRequest.newBuilder()
@@ -449,8 +488,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   InsertExternalVpnGatewayRequest request =
    *       InsertExternalVpnGatewayRequest.newBuilder()
@@ -475,8 +517,11 @@ public final UnaryCallable<InsertExternalVpnGatewayRequest, Operation> insertCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   for (ExternalVpnGateway element : externalVpnGatewaysClient.list(project).iterateAll()) {
@@ -501,8 +546,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   ListExternalVpnGatewaysRequest request =
    *       ListExternalVpnGatewaysRequest.newBuilder()
@@ -533,8 +581,11 @@ public final ListPagedResponse list(ListExternalVpnGatewaysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   ListExternalVpnGatewaysRequest request =
    *       ListExternalVpnGatewaysRequest.newBuilder()
@@ -566,8 +617,11 @@ public final ListPagedResponse list(ListExternalVpnGatewaysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   ListExternalVpnGatewaysRequest request =
    *       ListExternalVpnGatewaysRequest.newBuilder()
@@ -606,8 +660,11 @@ public final ListPagedResponse list(ListExternalVpnGatewaysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -644,8 +701,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   SetLabelsExternalVpnGatewayRequest request =
    *       SetLabelsExternalVpnGatewayRequest.newBuilder()
@@ -675,8 +735,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   SetLabelsExternalVpnGatewayRequest request =
    *       SetLabelsExternalVpnGatewayRequest.newBuilder()
@@ -704,8 +767,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   SetLabelsExternalVpnGatewayRequest request =
    *       SetLabelsExternalVpnGatewayRequest.newBuilder()
@@ -731,8 +797,11 @@ public final UnaryCallable<SetLabelsExternalVpnGatewayRequest, Operation> setLab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -767,8 +836,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   TestIamPermissionsExternalVpnGatewayRequest request =
    *       TestIamPermissionsExternalVpnGatewayRequest.newBuilder()
@@ -795,8 +867,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
    *   TestIamPermissionsExternalVpnGatewayRequest request =
    *       TestIamPermissionsExternalVpnGatewayRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysSettings.java
index ffb476dc4..b79f72eda 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ExternalVpnGatewaysSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ExternalVpnGatewaysSettings.Builder externalVpnGatewaysSettingsBuilder =
  *     ExternalVpnGatewaysSettings.newBuilder();
  * externalVpnGatewaysSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         externalVpnGatewaysSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         externalVpnGatewaysSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ExternalVpnGatewaysSettings externalVpnGatewaysSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesClient.java
index 6c87b3a63..3aaa5c030 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
  *   String firewallPolicy = "firewallPolicy1819692626";
  *   FirewallPolicy response = firewallPoliciesClient.get(firewallPolicy);
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallPoliciesSettings firewallPoliciesSettings =
  *     FirewallPoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallPoliciesSettings firewallPoliciesSettings =
  *     FirewallPoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * FirewallPoliciesClient firewallPoliciesClient =
@@ -161,8 +170,11 @@ public FirewallPoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicyAssociation firewallPolicyAssociationResource =
@@ -195,8 +207,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   AddAssociationFirewallPolicyRequest request =
    *       AddAssociationFirewallPolicyRequest.newBuilder()
@@ -226,8 +241,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   AddAssociationFirewallPolicyRequest request =
    *       AddAssociationFirewallPolicyRequest.newBuilder()
@@ -255,8 +273,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   AddAssociationFirewallPolicyRequest request =
    *       AddAssociationFirewallPolicyRequest.newBuilder()
@@ -284,8 +305,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicyRule firewallPolicyRuleResource = FirewallPolicyRule.newBuilder().build();
@@ -315,8 +339,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   AddRuleFirewallPolicyRequest request =
    *       AddRuleFirewallPolicyRequest.newBuilder()
@@ -345,8 +372,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   AddRuleFirewallPolicyRequest request =
    *       AddRuleFirewallPolicyRequest.newBuilder()
@@ -373,8 +403,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   AddRuleFirewallPolicyRequest request =
    *       AddRuleFirewallPolicyRequest.newBuilder()
@@ -399,8 +432,11 @@ public final UnaryCallable<AddRuleFirewallPolicyRequest, Operation> addRuleCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   Operation response = firewallPoliciesClient.cloneRulesAsync(firewallPolicy).get();
@@ -423,8 +459,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(String firewa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   CloneRulesFirewallPolicyRequest request =
    *       CloneRulesFirewallPolicyRequest.newBuilder()
@@ -453,8 +492,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   CloneRulesFirewallPolicyRequest request =
    *       CloneRulesFirewallPolicyRequest.newBuilder()
@@ -481,8 +523,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   CloneRulesFirewallPolicyRequest request =
    *       CloneRulesFirewallPolicyRequest.newBuilder()
@@ -507,8 +552,11 @@ public final UnaryCallable<CloneRulesFirewallPolicyRequest, Operation> cloneRule
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   Operation response = firewallPoliciesClient.deleteAsync(firewallPolicy).get();
@@ -531,8 +579,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String firewallPo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   DeleteFirewallPolicyRequest request =
    *       DeleteFirewallPolicyRequest.newBuilder()
@@ -560,8 +611,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   DeleteFirewallPolicyRequest request =
    *       DeleteFirewallPolicyRequest.newBuilder()
@@ -587,8 +641,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   DeleteFirewallPolicyRequest request =
    *       DeleteFirewallPolicyRequest.newBuilder()
@@ -612,8 +669,11 @@ public final UnaryCallable<DeleteFirewallPolicyRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicy response = firewallPoliciesClient.get(firewallPolicy);
@@ -636,8 +696,11 @@ public final FirewallPolicy get(String firewallPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetFirewallPolicyRequest request =
    *       GetFirewallPolicyRequest.newBuilder()
@@ -661,8 +724,11 @@ public final FirewallPolicy get(GetFirewallPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetFirewallPolicyRequest request =
    *       GetFirewallPolicyRequest.newBuilder()
@@ -685,8 +751,11 @@ public final UnaryCallable<GetFirewallPolicyRequest, FirewallPolicy> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicyAssociation response = firewallPoliciesClient.getAssociation(firewallPolicy);
@@ -709,8 +778,11 @@ public final FirewallPolicyAssociation getAssociation(String firewallPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetAssociationFirewallPolicyRequest request =
    *       GetAssociationFirewallPolicyRequest.newBuilder()
@@ -736,8 +808,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetAssociationFirewallPolicyRequest request =
    *       GetAssociationFirewallPolicyRequest.newBuilder()
@@ -764,8 +839,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String resource = "resource-341064690";
    *   Policy response = firewallPoliciesClient.getIamPolicy(resource);
@@ -789,8 +867,11 @@ public final Policy getIamPolicy(String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetIamPolicyFirewallPolicyRequest request =
    *       GetIamPolicyFirewallPolicyRequest.newBuilder()
@@ -816,8 +897,11 @@ public final Policy getIamPolicy(GetIamPolicyFirewallPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetIamPolicyFirewallPolicyRequest request =
    *       GetIamPolicyFirewallPolicyRequest.newBuilder()
@@ -841,8 +925,11 @@ public final UnaryCallable<GetIamPolicyFirewallPolicyRequest, Policy> getIamPoli
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicyRule response = firewallPoliciesClient.getRule(firewallPolicy);
@@ -865,8 +952,11 @@ public final FirewallPolicyRule getRule(String firewallPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetRuleFirewallPolicyRequest request =
    *       GetRuleFirewallPolicyRequest.newBuilder()
@@ -891,8 +981,11 @@ public final FirewallPolicyRule getRule(GetRuleFirewallPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   GetRuleFirewallPolicyRequest request =
    *       GetRuleFirewallPolicyRequest.newBuilder()
@@ -917,8 +1010,11 @@ public final UnaryCallable<GetRuleFirewallPolicyRequest, FirewallPolicyRule> get
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String parentId = "parentId1175162725";
    *   FirewallPolicy firewallPolicyResource = FirewallPolicy.newBuilder().build();
@@ -950,8 +1046,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   InsertFirewallPolicyRequest request =
    *       InsertFirewallPolicyRequest.newBuilder()
@@ -980,8 +1079,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   InsertFirewallPolicyRequest request =
    *       InsertFirewallPolicyRequest.newBuilder()
@@ -1008,8 +1110,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   InsertFirewallPolicyRequest request =
    *       InsertFirewallPolicyRequest.newBuilder()
@@ -1034,8 +1139,11 @@ public final UnaryCallable<InsertFirewallPolicyRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   for (FirewallPolicy element : firewallPoliciesClient.list().iterateAll()) {
    *     // doThingsWith(element);
@@ -1058,8 +1166,11 @@ public final ListPagedResponse list() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   ListFirewallPoliciesRequest request =
    *       ListFirewallPoliciesRequest.newBuilder()
@@ -1090,8 +1201,11 @@ public final ListPagedResponse list(ListFirewallPoliciesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   ListFirewallPoliciesRequest request =
    *       ListFirewallPoliciesRequest.newBuilder()
@@ -1122,8 +1236,11 @@ public final UnaryCallable<ListFirewallPoliciesRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   ListFirewallPoliciesRequest request =
    *       ListFirewallPoliciesRequest.newBuilder()
@@ -1160,8 +1277,11 @@ public final UnaryCallable<ListFirewallPoliciesRequest, FirewallPolicyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   FirewallPoliciesListAssociationsResponse response = firewallPoliciesClient.listAssociations();
    * }
@@ -1183,8 +1303,11 @@ public final FirewallPoliciesListAssociationsResponse listAssociations() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   ListAssociationsFirewallPolicyRequest request =
    *       ListAssociationsFirewallPolicyRequest.newBuilder()
@@ -1210,8 +1333,11 @@ public final FirewallPoliciesListAssociationsResponse listAssociations(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   ListAssociationsFirewallPolicyRequest request =
    *       ListAssociationsFirewallPolicyRequest.newBuilder()
@@ -1237,8 +1363,11 @@ public final FirewallPoliciesListAssociationsResponse listAssociations(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   String parentId = "parentId1175162725";
@@ -1267,8 +1396,11 @@ public final OperationFuture<Operation, Operation> moveAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   MoveFirewallPolicyRequest request =
    *       MoveFirewallPolicyRequest.newBuilder()
@@ -1296,8 +1428,11 @@ public final OperationFuture<Operation, Operation> moveAsync(MoveFirewallPolicyR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   MoveFirewallPolicyRequest request =
    *       MoveFirewallPolicyRequest.newBuilder()
@@ -1324,8 +1459,11 @@ public final OperationFuture<Operation, Operation> moveAsync(MoveFirewallPolicyR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   MoveFirewallPolicyRequest request =
    *       MoveFirewallPolicyRequest.newBuilder()
@@ -1350,8 +1488,11 @@ public final UnaryCallable<MoveFirewallPolicyRequest, Operation> moveCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicy firewallPolicyResource = FirewallPolicy.newBuilder().build();
@@ -1381,8 +1522,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   PatchFirewallPolicyRequest request =
    *       PatchFirewallPolicyRequest.newBuilder()
@@ -1411,8 +1555,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   PatchFirewallPolicyRequest request =
    *       PatchFirewallPolicyRequest.newBuilder()
@@ -1439,8 +1586,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   PatchFirewallPolicyRequest request =
    *       PatchFirewallPolicyRequest.newBuilder()
@@ -1465,8 +1615,11 @@ public final UnaryCallable<PatchFirewallPolicyRequest, Operation> patchCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   FirewallPolicyRule firewallPolicyRuleResource = FirewallPolicyRule.newBuilder().build();
@@ -1496,8 +1649,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   PatchRuleFirewallPolicyRequest request =
    *       PatchRuleFirewallPolicyRequest.newBuilder()
@@ -1527,8 +1683,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   PatchRuleFirewallPolicyRequest request =
    *       PatchRuleFirewallPolicyRequest.newBuilder()
@@ -1556,8 +1715,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   PatchRuleFirewallPolicyRequest request =
    *       PatchRuleFirewallPolicyRequest.newBuilder()
@@ -1583,8 +1745,11 @@ public final UnaryCallable<PatchRuleFirewallPolicyRequest, Operation> patchRuleC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   Operation response = firewallPoliciesClient.removeAssociationAsync(firewallPolicy).get();
@@ -1609,8 +1774,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(String
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   RemoveAssociationFirewallPolicyRequest request =
    *       RemoveAssociationFirewallPolicyRequest.newBuilder()
@@ -1639,8 +1807,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   RemoveAssociationFirewallPolicyRequest request =
    *       RemoveAssociationFirewallPolicyRequest.newBuilder()
@@ -1667,8 +1838,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   RemoveAssociationFirewallPolicyRequest request =
    *       RemoveAssociationFirewallPolicyRequest.newBuilder()
@@ -1695,8 +1869,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String firewallPolicy = "firewallPolicy1819692626";
    *   Operation response = firewallPoliciesClient.removeRuleAsync(firewallPolicy).get();
@@ -1719,8 +1896,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(String firewa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   RemoveRuleFirewallPolicyRequest request =
    *       RemoveRuleFirewallPolicyRequest.newBuilder()
@@ -1749,8 +1929,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   RemoveRuleFirewallPolicyRequest request =
    *       RemoveRuleFirewallPolicyRequest.newBuilder()
@@ -1777,8 +1960,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   RemoveRuleFirewallPolicyRequest request =
    *       RemoveRuleFirewallPolicyRequest.newBuilder()
@@ -1803,8 +1989,11 @@ public final UnaryCallable<RemoveRuleFirewallPolicyRequest, Operation> removeRul
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String resource = "resource-341064690";
    *   GlobalOrganizationSetPolicyRequest globalOrganizationSetPolicyRequestResource =
@@ -1837,8 +2026,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   SetIamPolicyFirewallPolicyRequest request =
    *       SetIamPolicyFirewallPolicyRequest.newBuilder()
@@ -1864,8 +2056,11 @@ public final Policy setIamPolicy(SetIamPolicyFirewallPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   SetIamPolicyFirewallPolicyRequest request =
    *       SetIamPolicyFirewallPolicyRequest.newBuilder()
@@ -1890,8 +2085,11 @@ public final UnaryCallable<SetIamPolicyFirewallPolicyRequest, Policy> setIamPoli
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   String resource = "resource-341064690";
    *   TestPermissionsRequest testPermissionsRequestResource =
@@ -1922,8 +2120,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   TestIamPermissionsFirewallPolicyRequest request =
    *       TestIamPermissionsFirewallPolicyRequest.newBuilder()
@@ -1949,8 +2150,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
    *   TestIamPermissionsFirewallPolicyRequest request =
    *       TestIamPermissionsFirewallPolicyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesSettings.java
index f44891c2c..86dffcd55 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallPoliciesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallPoliciesSettings.Builder firewallPoliciesSettingsBuilder =
  *     FirewallPoliciesSettings.newBuilder();
  * firewallPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         firewallPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         firewallPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * FirewallPoliciesSettings firewallPoliciesSettings = firewallPoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsClient.java
index 2aec1306a..aa1ce5c2f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
  *   String project = "project-309310695";
  *   String firewall = "firewall-562725632";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallsSettings firewallsSettings =
  *     FirewallsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallsSettings firewallsSettings =
  *     FirewallsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * FirewallsClient firewallsClient = FirewallsClient.create(firewallsSettings);
@@ -157,8 +166,11 @@ public FirewallsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   String project = "project-309310695";
    *   String firewall = "firewall-562725632";
@@ -183,8 +195,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   DeleteFirewallRequest request =
    *       DeleteFirewallRequest.newBuilder()
@@ -212,8 +227,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteFirewallReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   DeleteFirewallRequest request =
    *       DeleteFirewallRequest.newBuilder()
@@ -240,8 +258,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteFirewallReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   DeleteFirewallRequest request =
    *       DeleteFirewallRequest.newBuilder()
@@ -266,8 +287,11 @@ public final UnaryCallable<DeleteFirewallRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   String project = "project-309310695";
    *   String firewall = "firewall-562725632";
@@ -292,8 +316,11 @@ public final Firewall get(String project, String firewall) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   GetFirewallRequest request =
    *       GetFirewallRequest.newBuilder()
@@ -318,8 +345,11 @@ public final Firewall get(GetFirewallRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   GetFirewallRequest request =
    *       GetFirewallRequest.newBuilder()
@@ -343,8 +373,11 @@ public final UnaryCallable<GetFirewallRequest, Firewall> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   String project = "project-309310695";
    *   Firewall firewallResource = Firewall.newBuilder().build();
@@ -373,8 +406,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   InsertFirewallRequest request =
    *       InsertFirewallRequest.newBuilder()
@@ -402,8 +438,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertFirewallReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   InsertFirewallRequest request =
    *       InsertFirewallRequest.newBuilder()
@@ -430,8 +469,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertFirewallReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   InsertFirewallRequest request =
    *       InsertFirewallRequest.newBuilder()
@@ -456,8 +498,11 @@ public final UnaryCallable<InsertFirewallRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   String project = "project-309310695";
    *   for (Firewall element : firewallsClient.list(project).iterateAll()) {
@@ -481,8 +526,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   ListFirewallsRequest request =
    *       ListFirewallsRequest.newBuilder()
@@ -513,8 +561,11 @@ public final ListPagedResponse list(ListFirewallsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   ListFirewallsRequest request =
    *       ListFirewallsRequest.newBuilder()
@@ -544,8 +595,11 @@ public final UnaryCallable<ListFirewallsRequest, ListPagedResponse> listPagedCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   ListFirewallsRequest request =
    *       ListFirewallsRequest.newBuilder()
@@ -583,8 +637,11 @@ public final UnaryCallable<ListFirewallsRequest, FirewallList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   String project = "project-309310695";
    *   String firewall = "firewall-562725632";
@@ -617,8 +674,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   PatchFirewallRequest request =
    *       PatchFirewallRequest.newBuilder()
@@ -648,8 +708,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchFirewallReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   PatchFirewallRequest request =
    *       PatchFirewallRequest.newBuilder()
@@ -678,8 +741,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchFirewallReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   PatchFirewallRequest request =
    *       PatchFirewallRequest.newBuilder()
@@ -707,8 +773,11 @@ public final UnaryCallable<PatchFirewallRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   String project = "project-309310695";
    *   String firewall = "firewall-562725632";
@@ -742,8 +811,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   UpdateFirewallRequest request =
    *       UpdateFirewallRequest.newBuilder()
@@ -774,8 +846,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateFirewallReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   UpdateFirewallRequest request =
    *       UpdateFirewallRequest.newBuilder()
@@ -805,8 +880,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateFirewallReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
    *   UpdateFirewallRequest request =
    *       UpdateFirewallRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsSettings.java
index 2f8154cee..63a7230b8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/FirewallsSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallsSettings.Builder firewallsSettingsBuilder = FirewallsSettings.newBuilder();
  * firewallsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         firewallsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         firewallsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * FirewallsSettings firewallsSettings = firewallsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesClient.java
index b501b23de..a4c7d09f6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ForwardingRulesSettings forwardingRulesSettings =
  *     ForwardingRulesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ForwardingRulesSettings forwardingRulesSettings =
  *     ForwardingRulesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ForwardingRulesClient forwardingRulesClient =
@@ -164,8 +173,11 @@ public ForwardingRulesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, ForwardingRulesScopedList> element :
@@ -191,8 +203,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   AggregatedListForwardingRulesRequest request =
    *       AggregatedListForwardingRulesRequest.newBuilder()
@@ -226,8 +241,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   AggregatedListForwardingRulesRequest request =
    *       AggregatedListForwardingRulesRequest.newBuilder()
@@ -260,8 +278,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   AggregatedListForwardingRulesRequest request =
    *       AggregatedListForwardingRulesRequest.newBuilder()
@@ -301,8 +322,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -334,8 +358,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   DeleteForwardingRuleRequest request =
    *       DeleteForwardingRuleRequest.newBuilder()
@@ -365,8 +392,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   DeleteForwardingRuleRequest request =
    *       DeleteForwardingRuleRequest.newBuilder()
@@ -394,8 +424,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   DeleteForwardingRuleRequest request =
    *       DeleteForwardingRuleRequest.newBuilder()
@@ -421,8 +454,11 @@ public final UnaryCallable<DeleteForwardingRuleRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -453,8 +489,11 @@ public final ForwardingRule get(String project, String region, String forwarding
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   GetForwardingRuleRequest request =
    *       GetForwardingRuleRequest.newBuilder()
@@ -480,8 +519,11 @@ public final ForwardingRule get(GetForwardingRuleRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   GetForwardingRuleRequest request =
    *       GetForwardingRuleRequest.newBuilder()
@@ -507,8 +549,11 @@ public final UnaryCallable<GetForwardingRuleRequest, ForwardingRule> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -542,8 +587,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   InsertForwardingRuleRequest request =
    *       InsertForwardingRuleRequest.newBuilder()
@@ -574,8 +622,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   InsertForwardingRuleRequest request =
    *       InsertForwardingRuleRequest.newBuilder()
@@ -604,8 +655,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   InsertForwardingRuleRequest request =
    *       InsertForwardingRuleRequest.newBuilder()
@@ -631,8 +685,11 @@ public final UnaryCallable<InsertForwardingRuleRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -659,8 +716,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   ListForwardingRulesRequest request =
    *       ListForwardingRulesRequest.newBuilder()
@@ -692,8 +752,11 @@ public final ListPagedResponse list(ListForwardingRulesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   ListForwardingRulesRequest request =
    *       ListForwardingRulesRequest.newBuilder()
@@ -725,8 +788,11 @@ public final UnaryCallable<ListForwardingRulesRequest, ListPagedResponse> listPa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   ListForwardingRulesRequest request =
    *       ListForwardingRulesRequest.newBuilder()
@@ -766,8 +832,11 @@ public final UnaryCallable<ListForwardingRulesRequest, ForwardingRuleList> listC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -807,8 +876,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   PatchForwardingRuleRequest request =
    *       PatchForwardingRuleRequest.newBuilder()
@@ -841,8 +913,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   PatchForwardingRuleRequest request =
    *       PatchForwardingRuleRequest.newBuilder()
@@ -873,8 +948,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   PatchForwardingRuleRequest request =
    *       PatchForwardingRuleRequest.newBuilder()
@@ -902,8 +980,11 @@ public final UnaryCallable<PatchForwardingRuleRequest, Operation> patchCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -946,8 +1027,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   SetLabelsForwardingRuleRequest request =
    *       SetLabelsForwardingRuleRequest.newBuilder()
@@ -979,8 +1063,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   SetLabelsForwardingRuleRequest request =
    *       SetLabelsForwardingRuleRequest.newBuilder()
@@ -1010,8 +1097,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   SetLabelsForwardingRuleRequest request =
    *       SetLabelsForwardingRuleRequest.newBuilder()
@@ -1039,8 +1129,11 @@ public final UnaryCallable<SetLabelsForwardingRuleRequest, Operation> setLabelsC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1082,8 +1175,11 @@ public final OperationFuture<Operation, Operation> setTargetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   SetTargetForwardingRuleRequest request =
    *       SetTargetForwardingRuleRequest.newBuilder()
@@ -1115,8 +1211,11 @@ public final OperationFuture<Operation, Operation> setTargetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   SetTargetForwardingRuleRequest request =
    *       SetTargetForwardingRuleRequest.newBuilder()
@@ -1146,8 +1245,11 @@ public final OperationFuture<Operation, Operation> setTargetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
    *   SetTargetForwardingRuleRequest request =
    *       SetTargetForwardingRuleRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesSettings.java
index 257102492..39afe790e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ForwardingRulesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ForwardingRulesSettings.Builder forwardingRulesSettingsBuilder =
  *     ForwardingRulesSettings.newBuilder();
  * forwardingRulesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         forwardingRulesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         forwardingRulesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ForwardingRulesSettings forwardingRulesSettings = forwardingRulesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesClient.java
index a94676f27..d59b5e222 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
  *   String project = "project-309310695";
  *   String address = "address-1147692044";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalAddressesSettings globalAddressesSettings =
  *     GlobalAddressesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalAddressesSettings globalAddressesSettings =
  *     GlobalAddressesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * GlobalAddressesClient globalAddressesClient =
@@ -162,8 +171,11 @@ public GlobalAddressesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   String project = "project-309310695";
    *   String address = "address-1147692044";
@@ -188,8 +200,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   DeleteGlobalAddressRequest request =
    *       DeleteGlobalAddressRequest.newBuilder()
@@ -218,8 +233,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   DeleteGlobalAddressRequest request =
    *       DeleteGlobalAddressRequest.newBuilder()
@@ -246,8 +264,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   DeleteGlobalAddressRequest request =
    *       DeleteGlobalAddressRequest.newBuilder()
@@ -273,8 +294,11 @@ public final UnaryCallable<DeleteGlobalAddressRequest, Operation> deleteCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   String project = "project-309310695";
    *   String address = "address-1147692044";
@@ -300,8 +324,11 @@ public final Address get(String project, String address) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   GetGlobalAddressRequest request =
    *       GetGlobalAddressRequest.newBuilder()
@@ -327,8 +354,11 @@ public final Address get(GetGlobalAddressRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   GetGlobalAddressRequest request =
    *       GetGlobalAddressRequest.newBuilder()
@@ -352,8 +382,11 @@ public final UnaryCallable<GetGlobalAddressRequest, Address> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   String project = "project-309310695";
    *   Address addressResource = Address.newBuilder().build();
@@ -382,8 +415,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   InsertGlobalAddressRequest request =
    *       InsertGlobalAddressRequest.newBuilder()
@@ -412,8 +448,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   InsertGlobalAddressRequest request =
    *       InsertGlobalAddressRequest.newBuilder()
@@ -440,8 +479,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   InsertGlobalAddressRequest request =
    *       InsertGlobalAddressRequest.newBuilder()
@@ -466,8 +508,11 @@ public final UnaryCallable<InsertGlobalAddressRequest, Operation> insertCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   String project = "project-309310695";
    *   for (Address element : globalAddressesClient.list(project).iterateAll()) {
@@ -492,8 +537,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   ListGlobalAddressesRequest request =
    *       ListGlobalAddressesRequest.newBuilder()
@@ -524,8 +572,11 @@ public final ListPagedResponse list(ListGlobalAddressesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   ListGlobalAddressesRequest request =
    *       ListGlobalAddressesRequest.newBuilder()
@@ -555,8 +606,11 @@ public final UnaryCallable<ListGlobalAddressesRequest, ListPagedResponse> listPa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
    *   ListGlobalAddressesRequest request =
    *       ListGlobalAddressesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesSettings.java
index 2305ffb09..df35a46c3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalAddressesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalAddressesSettings.Builder globalAddressesSettingsBuilder =
  *     GlobalAddressesSettings.newBuilder();
  * globalAddressesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         globalAddressesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalAddressesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalAddressesSettings globalAddressesSettings = globalAddressesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesClient.java
index a094d3a02..7cf8e07d5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalForwardingRulesClient globalForwardingRulesClient =
  *     GlobalForwardingRulesClient.create()) {
  *   String project = "project-309310695";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalForwardingRulesSettings globalForwardingRulesSettings =
  *     GlobalForwardingRulesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalForwardingRulesSettings globalForwardingRulesSettings =
  *     GlobalForwardingRulesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * GlobalForwardingRulesClient globalForwardingRulesClient =
@@ -163,8 +172,11 @@ public GlobalForwardingRulesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -194,8 +206,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   DeleteGlobalForwardingRuleRequest request =
@@ -225,8 +240,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   DeleteGlobalForwardingRuleRequest request =
@@ -254,8 +272,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   DeleteGlobalForwardingRuleRequest request =
@@ -283,8 +304,11 @@ public final UnaryCallable<DeleteGlobalForwardingRuleRequest, Operation> deleteC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -314,8 +338,11 @@ public final ForwardingRule get(String project, String forwardingRule) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   GetGlobalForwardingRuleRequest request =
@@ -342,8 +369,11 @@ public final ForwardingRule get(GetGlobalForwardingRuleRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   GetGlobalForwardingRuleRequest request =
@@ -370,8 +400,11 @@ public final UnaryCallable<GetGlobalForwardingRuleRequest, ForwardingRule> getCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -403,8 +436,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   InsertGlobalForwardingRuleRequest request =
@@ -435,8 +471,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   InsertGlobalForwardingRuleRequest request =
@@ -465,8 +504,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   InsertGlobalForwardingRuleRequest request =
@@ -493,8 +535,11 @@ public final UnaryCallable<InsertGlobalForwardingRuleRequest, Operation> insertC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -520,8 +565,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   ListGlobalForwardingRulesRequest request =
@@ -553,8 +601,11 @@ public final ListPagedResponse list(ListGlobalForwardingRulesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   ListGlobalForwardingRulesRequest request =
@@ -587,8 +638,11 @@ public final ListPagedResponse list(ListGlobalForwardingRulesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   ListGlobalForwardingRulesRequest request =
@@ -628,8 +682,11 @@ public final UnaryCallable<ListGlobalForwardingRulesRequest, ForwardingRuleList>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -667,8 +724,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   PatchGlobalForwardingRuleRequest request =
@@ -701,8 +761,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   PatchGlobalForwardingRuleRequest request =
@@ -733,8 +796,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   PatchGlobalForwardingRuleRequest request =
@@ -762,8 +828,11 @@ public final UnaryCallable<PatchGlobalForwardingRuleRequest, Operation> patchCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -801,8 +870,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   SetLabelsGlobalForwardingRuleRequest request =
@@ -833,8 +905,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   SetLabelsGlobalForwardingRuleRequest request =
@@ -863,8 +938,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   SetLabelsGlobalForwardingRuleRequest request =
@@ -892,8 +970,11 @@ public final UnaryCallable<SetLabelsGlobalForwardingRuleRequest, Operation> setL
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   String project = "project-309310695";
@@ -930,8 +1011,11 @@ public final OperationFuture<Operation, Operation> setTargetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   SetTargetGlobalForwardingRuleRequest request =
@@ -963,8 +1047,11 @@ public final OperationFuture<Operation, Operation> setTargetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   SetTargetGlobalForwardingRuleRequest request =
@@ -994,8 +1081,11 @@ public final OperationFuture<Operation, Operation> setTargetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalForwardingRulesClient globalForwardingRulesClient =
    *     GlobalForwardingRulesClient.create()) {
    *   SetTargetGlobalForwardingRuleRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesSettings.java
index 51ad6f950..4c92caa6a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalForwardingRulesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalForwardingRulesSettings.Builder globalForwardingRulesSettingsBuilder =
  *     GlobalForwardingRulesSettings.newBuilder();
  * globalForwardingRulesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         globalForwardingRulesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalForwardingRulesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalForwardingRulesSettings globalForwardingRulesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsClient.java
index 0a4a74e62..b0e1456e1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
  *     GlobalNetworkEndpointGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalNetworkEndpointGroupsSettings globalNetworkEndpointGroupsSettings =
  *     GlobalNetworkEndpointGroupsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalNetworkEndpointGroupsSettings globalNetworkEndpointGroupsSettings =
  *     GlobalNetworkEndpointGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
@@ -167,8 +176,11 @@ public GlobalNetworkEndpointGroupsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -215,8 +227,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   AttachNetworkEndpointsGlobalNetworkEndpointGroupRequest request =
@@ -249,8 +264,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   AttachNetworkEndpointsGlobalNetworkEndpointGroupRequest request =
@@ -283,8 +301,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   AttachNetworkEndpointsGlobalNetworkEndpointGroupRequest request =
@@ -315,8 +336,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -349,8 +373,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   DeleteGlobalNetworkEndpointGroupRequest request =
@@ -381,8 +408,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   DeleteGlobalNetworkEndpointGroupRequest request =
@@ -411,8 +441,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   DeleteGlobalNetworkEndpointGroupRequest request =
@@ -439,8 +472,11 @@ public final UnaryCallable<DeleteGlobalNetworkEndpointGroupRequest, Operation> d
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -487,8 +523,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   DetachNetworkEndpointsGlobalNetworkEndpointGroupRequest request =
@@ -521,8 +560,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   DetachNetworkEndpointsGlobalNetworkEndpointGroupRequest request =
@@ -555,8 +597,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   DetachNetworkEndpointsGlobalNetworkEndpointGroupRequest request =
@@ -587,8 +632,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -620,8 +668,11 @@ public final NetworkEndpointGroup get(String project, String networkEndpointGrou
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   GetGlobalNetworkEndpointGroupRequest request =
@@ -648,8 +699,11 @@ public final NetworkEndpointGroup get(GetGlobalNetworkEndpointGroupRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   GetGlobalNetworkEndpointGroupRequest request =
@@ -677,8 +731,11 @@ public final NetworkEndpointGroup get(GetGlobalNetworkEndpointGroupRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -712,8 +769,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   InsertGlobalNetworkEndpointGroupRequest request =
@@ -744,8 +804,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   InsertGlobalNetworkEndpointGroupRequest request =
@@ -774,8 +837,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   InsertGlobalNetworkEndpointGroupRequest request =
@@ -802,8 +868,11 @@ public final UnaryCallable<InsertGlobalNetworkEndpointGroupRequest, Operation> i
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -830,8 +899,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   ListGlobalNetworkEndpointGroupsRequest request =
@@ -864,8 +936,11 @@ public final ListPagedResponse list(ListGlobalNetworkEndpointGroupsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   ListGlobalNetworkEndpointGroupsRequest request =
@@ -898,8 +973,11 @@ public final ListPagedResponse list(ListGlobalNetworkEndpointGroupsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   ListGlobalNetworkEndpointGroupsRequest request =
@@ -939,8 +1017,11 @@ public final ListPagedResponse list(ListGlobalNetworkEndpointGroupsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -976,8 +1057,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointsGlobalNetworkEndpointGroupsRequest request =
@@ -1012,8 +1096,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointsGlobalNetworkEndpointGroupsRequest request =
@@ -1048,8 +1135,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
    *     GlobalNetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointsGlobalNetworkEndpointGroupsRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsSettings.java
index 327da8166..146ae01c4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalNetworkEndpointGroupsSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalNetworkEndpointGroupsSettings.Builder globalNetworkEndpointGroupsSettingsBuilder =
  *     GlobalNetworkEndpointGroupsSettings.newBuilder();
  * globalNetworkEndpointGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         globalNetworkEndpointGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalNetworkEndpointGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalNetworkEndpointGroupsSettings globalNetworkEndpointGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsClient.java
index 3e032200f..f696ff0ac 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsClient.java
@@ -41,8 +41,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
  *   String project = "project-309310695";
  *   String operation = "operation1662702951";
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOperationsSettings globalOperationsSettings =
  *     GlobalOperationsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOperationsSettings globalOperationsSettings =
  *     GlobalOperationsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * GlobalOperationsClient globalOperationsClient =
@@ -160,8 +169,11 @@ public GlobalOperationsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, OperationsScopedList> element :
@@ -187,8 +199,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   AggregatedListGlobalOperationsRequest request =
    *       AggregatedListGlobalOperationsRequest.newBuilder()
@@ -222,8 +237,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   AggregatedListGlobalOperationsRequest request =
    *       AggregatedListGlobalOperationsRequest.newBuilder()
@@ -256,8 +274,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   AggregatedListGlobalOperationsRequest request =
    *       AggregatedListGlobalOperationsRequest.newBuilder()
@@ -297,8 +318,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String operation = "operation1662702951";
@@ -326,8 +350,11 @@ public final DeleteGlobalOperationResponse delete(String project, String operati
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   DeleteGlobalOperationRequest request =
    *       DeleteGlobalOperationRequest.newBuilder()
@@ -352,8 +379,11 @@ public final DeleteGlobalOperationResponse delete(DeleteGlobalOperationRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   DeleteGlobalOperationRequest request =
    *       DeleteGlobalOperationRequest.newBuilder()
@@ -379,8 +409,11 @@ public final DeleteGlobalOperationResponse delete(DeleteGlobalOperationRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String operation = "operation1662702951";
@@ -405,8 +438,11 @@ public final Operation get(String project, String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   GetGlobalOperationRequest request =
    *       GetGlobalOperationRequest.newBuilder()
@@ -431,8 +467,11 @@ public final Operation get(GetGlobalOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   GetGlobalOperationRequest request =
    *       GetGlobalOperationRequest.newBuilder()
@@ -456,8 +495,11 @@ public final UnaryCallable<GetGlobalOperationRequest, Operation> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   String project = "project-309310695";
    *   for (Operation element : globalOperationsClient.list(project).iterateAll()) {
@@ -482,8 +524,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   ListGlobalOperationsRequest request =
    *       ListGlobalOperationsRequest.newBuilder()
@@ -514,8 +559,11 @@ public final ListPagedResponse list(ListGlobalOperationsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   ListGlobalOperationsRequest request =
    *       ListGlobalOperationsRequest.newBuilder()
@@ -545,8 +593,11 @@ public final UnaryCallable<ListGlobalOperationsRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   ListGlobalOperationsRequest request =
    *       ListGlobalOperationsRequest.newBuilder()
@@ -591,8 +642,11 @@ public final UnaryCallable<ListGlobalOperationsRequest, OperationList> listCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String operation = "operation1662702951";
@@ -625,8 +679,11 @@ public final Operation wait(String project, String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   WaitGlobalOperationRequest request =
    *       WaitGlobalOperationRequest.newBuilder()
@@ -659,8 +716,11 @@ public final Operation wait(WaitGlobalOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
    *   WaitGlobalOperationRequest request =
    *       WaitGlobalOperationRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsSettings.java
index c84faefab..34ed2a39b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOperationsSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOperationsSettings.Builder globalOperationsSettingsBuilder =
  *     GlobalOperationsSettings.newBuilder();
  * globalOperationsSettingsBuilder
  *     .deleteSettings()
  *     .setRetrySettings(
- *         globalOperationsSettingsBuilder
- *             .deleteSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalOperationsSettingsBuilder.deleteSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalOperationsSettings globalOperationsSettings = globalOperationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsClient.java
index 51c897b5c..34d7e9e2c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
  *     GlobalOrganizationOperationsClient.create()) {
  *   String operation = "operation1662702951";
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOrganizationOperationsSettings globalOrganizationOperationsSettings =
  *     GlobalOrganizationOperationsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOrganizationOperationsSettings globalOrganizationOperationsSettings =
  *     GlobalOrganizationOperationsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
@@ -164,8 +173,11 @@ public GlobalOrganizationOperationsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   String operation = "operation1662702951";
@@ -190,8 +202,11 @@ public final DeleteGlobalOrganizationOperationResponse delete(String operation)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   DeleteGlobalOrganizationOperationRequest request =
@@ -219,8 +234,11 @@ public final DeleteGlobalOrganizationOperationResponse delete(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   DeleteGlobalOrganizationOperationRequest request =
@@ -249,8 +267,11 @@ public final DeleteGlobalOrganizationOperationResponse delete(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   String operation = "operation1662702951";
@@ -275,8 +296,11 @@ public final Operation get(String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   GetGlobalOrganizationOperationRequest request =
@@ -303,8 +327,11 @@ public final Operation get(GetGlobalOrganizationOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   GetGlobalOrganizationOperationRequest request =
@@ -330,8 +357,11 @@ public final UnaryCallable<GetGlobalOrganizationOperationRequest, Operation> get
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   for (Operation element : globalOrganizationOperationsClient.list().iterateAll()) {
@@ -356,8 +386,11 @@ public final ListPagedResponse list() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   ListGlobalOrganizationOperationsRequest request =
@@ -389,8 +422,11 @@ public final ListPagedResponse list(ListGlobalOrganizationOperationsRequest requ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   ListGlobalOrganizationOperationsRequest request =
@@ -423,8 +459,11 @@ public final ListPagedResponse list(ListGlobalOrganizationOperationsRequest requ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
    *     GlobalOrganizationOperationsClient.create()) {
    *   ListGlobalOrganizationOperationsRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsSettings.java
index 4e0e1fc88..bd65ac876 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalOrganizationOperationsSettings.java
@@ -52,8 +52,11 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOrganizationOperationsSettings.Builder globalOrganizationOperationsSettingsBuilder =
  *     GlobalOrganizationOperationsSettings.newBuilder();
  * globalOrganizationOperationsSettingsBuilder
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesClient.java
index 45a98cad4..66d269002 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
  *     GlobalPublicDelegatedPrefixesClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalPublicDelegatedPrefixesSettings globalPublicDelegatedPrefixesSettings =
  *     GlobalPublicDelegatedPrefixesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalPublicDelegatedPrefixesSettings globalPublicDelegatedPrefixesSettings =
  *     GlobalPublicDelegatedPrefixesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
@@ -168,8 +177,11 @@ public GlobalPublicDelegatedPrefixesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -200,8 +212,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   DeleteGlobalPublicDelegatedPrefixeRequest request =
@@ -231,8 +246,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   DeleteGlobalPublicDelegatedPrefixeRequest request =
@@ -260,8 +278,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   DeleteGlobalPublicDelegatedPrefixeRequest request =
@@ -289,8 +310,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -320,8 +344,11 @@ public final PublicDelegatedPrefix get(String project, String publicDelegatedPre
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   GetGlobalPublicDelegatedPrefixeRequest request =
@@ -347,8 +374,11 @@ public final PublicDelegatedPrefix get(GetGlobalPublicDelegatedPrefixeRequest re
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   GetGlobalPublicDelegatedPrefixeRequest request =
@@ -376,8 +406,11 @@ public final PublicDelegatedPrefix get(GetGlobalPublicDelegatedPrefixeRequest re
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -412,8 +445,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   InsertGlobalPublicDelegatedPrefixeRequest request =
@@ -444,8 +480,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   InsertGlobalPublicDelegatedPrefixeRequest request =
@@ -474,8 +513,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   InsertGlobalPublicDelegatedPrefixeRequest request =
@@ -503,8 +545,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -531,8 +576,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   ListGlobalPublicDelegatedPrefixesRequest request =
@@ -565,8 +613,11 @@ public final ListPagedResponse list(ListGlobalPublicDelegatedPrefixesRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   ListGlobalPublicDelegatedPrefixesRequest request =
@@ -599,8 +650,11 @@ public final ListPagedResponse list(ListGlobalPublicDelegatedPrefixesRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   ListGlobalPublicDelegatedPrefixesRequest request =
@@ -642,8 +696,11 @@ public final ListPagedResponse list(ListGlobalPublicDelegatedPrefixesRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -684,8 +741,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   PatchGlobalPublicDelegatedPrefixeRequest request =
@@ -718,8 +778,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   PatchGlobalPublicDelegatedPrefixeRequest request =
@@ -750,8 +813,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
    *     GlobalPublicDelegatedPrefixesClient.create()) {
    *   PatchGlobalPublicDelegatedPrefixeRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesSettings.java
index 91cc596ba..320c32529 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/GlobalPublicDelegatedPrefixesSettings.java
@@ -53,8 +53,11 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalPublicDelegatedPrefixesSettings.Builder globalPublicDelegatedPrefixesSettingsBuilder =
  *     GlobalPublicDelegatedPrefixesSettings.newBuilder();
  * globalPublicDelegatedPrefixesSettingsBuilder
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksClient.java
index 42abf1c3b..682f3b1ed 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
  *   String project = "project-309310695";
  *   String healthCheck = "healthCheck-1938093044";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * HealthChecksSettings healthChecksSettings =
  *     HealthChecksSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * HealthChecksSettings healthChecksSettings =
  *     HealthChecksSettings.newBuilder().setEndpoint(myEndpoint).build();
  * HealthChecksClient healthChecksClient = HealthChecksClient.create(healthChecksSettings);
@@ -160,8 +169,11 @@ public HealthChecksStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, HealthChecksScopedList> element :
@@ -188,8 +200,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   AggregatedListHealthChecksRequest request =
    *       AggregatedListHealthChecksRequest.newBuilder()
@@ -224,8 +239,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   AggregatedListHealthChecksRequest request =
    *       AggregatedListHealthChecksRequest.newBuilder()
@@ -259,8 +277,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   AggregatedListHealthChecksRequest request =
    *       AggregatedListHealthChecksRequest.newBuilder()
@@ -300,8 +321,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String healthCheck = "healthCheck-1938093044";
@@ -330,8 +354,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   DeleteHealthCheckRequest request =
    *       DeleteHealthCheckRequest.newBuilder()
@@ -359,8 +386,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteHealthCheck
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   DeleteHealthCheckRequest request =
    *       DeleteHealthCheckRequest.newBuilder()
@@ -387,8 +417,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteHealthCheck
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   DeleteHealthCheckRequest request =
    *       DeleteHealthCheckRequest.newBuilder()
@@ -414,8 +447,11 @@ public final UnaryCallable<DeleteHealthCheckRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String healthCheck = "healthCheck-1938093044";
@@ -441,8 +477,11 @@ public final HealthCheck get(String project, String healthCheck) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   GetHealthCheckRequest request =
    *       GetHealthCheckRequest.newBuilder()
@@ -468,8 +507,11 @@ public final HealthCheck get(GetHealthCheckRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   GetHealthCheckRequest request =
    *       GetHealthCheckRequest.newBuilder()
@@ -493,8 +535,11 @@ public final UnaryCallable<GetHealthCheckRequest, HealthCheck> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   HealthCheck healthCheckResource = HealthCheck.newBuilder().build();
@@ -523,8 +568,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   InsertHealthCheckRequest request =
    *       InsertHealthCheckRequest.newBuilder()
@@ -552,8 +600,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertHealthCheck
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   InsertHealthCheckRequest request =
    *       InsertHealthCheckRequest.newBuilder()
@@ -580,8 +631,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertHealthCheck
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   InsertHealthCheckRequest request =
    *       InsertHealthCheckRequest.newBuilder()
@@ -606,8 +660,11 @@ public final UnaryCallable<InsertHealthCheckRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   for (HealthCheck element : healthChecksClient.list(project).iterateAll()) {
@@ -632,8 +689,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   ListHealthChecksRequest request =
    *       ListHealthChecksRequest.newBuilder()
@@ -664,8 +724,11 @@ public final ListPagedResponse list(ListHealthChecksRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   ListHealthChecksRequest request =
    *       ListHealthChecksRequest.newBuilder()
@@ -695,8 +758,11 @@ public final UnaryCallable<ListHealthChecksRequest, ListPagedResponse> listPaged
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   ListHealthChecksRequest request =
    *       ListHealthChecksRequest.newBuilder()
@@ -734,8 +800,11 @@ public final UnaryCallable<ListHealthChecksRequest, HealthCheckList> listCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String healthCheck = "healthCheck-1938093044";
@@ -769,8 +838,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   PatchHealthCheckRequest request =
    *       PatchHealthCheckRequest.newBuilder()
@@ -800,8 +872,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchHealthCheckRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   PatchHealthCheckRequest request =
    *       PatchHealthCheckRequest.newBuilder()
@@ -830,8 +905,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchHealthCheckRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   PatchHealthCheckRequest request =
    *       PatchHealthCheckRequest.newBuilder()
@@ -857,8 +935,11 @@ public final UnaryCallable<PatchHealthCheckRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String healthCheck = "healthCheck-1938093044";
@@ -891,8 +972,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   UpdateHealthCheckRequest request =
    *       UpdateHealthCheckRequest.newBuilder()
@@ -921,8 +1005,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateHealthCheck
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   UpdateHealthCheckRequest request =
    *       UpdateHealthCheckRequest.newBuilder()
@@ -950,8 +1037,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateHealthCheck
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
    *   UpdateHealthCheckRequest request =
    *       UpdateHealthCheckRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksSettings.java
index 95e9cc06c..f8eb3e5dd 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/HealthChecksSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * HealthChecksSettings.Builder healthChecksSettingsBuilder = HealthChecksSettings.newBuilder();
  * healthChecksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         healthChecksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         healthChecksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * HealthChecksSettings healthChecksSettings = healthChecksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsClient.java
index 87fe0e9ec..e92fb0ab3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsClient.java
@@ -32,8 +32,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ImageFamilyViewsClient imageFamilyViewsClient = ImageFamilyViewsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -72,8 +75,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImageFamilyViewsSettings imageFamilyViewsSettings =
  *     ImageFamilyViewsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -85,8 +91,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImageFamilyViewsSettings imageFamilyViewsSettings =
  *     ImageFamilyViewsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ImageFamilyViewsClient imageFamilyViewsClient =
@@ -153,8 +162,11 @@ public ImageFamilyViewsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImageFamilyViewsClient imageFamilyViewsClient = ImageFamilyViewsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -186,8 +198,11 @@ public final ImageFamilyView get(String project, String zone, String family) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImageFamilyViewsClient imageFamilyViewsClient = ImageFamilyViewsClient.create()) {
    *   GetImageFamilyViewRequest request =
    *       GetImageFamilyViewRequest.newBuilder()
@@ -214,8 +229,11 @@ public final ImageFamilyView get(GetImageFamilyViewRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImageFamilyViewsClient imageFamilyViewsClient = ImageFamilyViewsClient.create()) {
    *   GetImageFamilyViewRequest request =
    *       GetImageFamilyViewRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsSettings.java
index 91631d790..304839280 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImageFamilyViewsSettings.java
@@ -49,17 +49,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImageFamilyViewsSettings.Builder imageFamilyViewsSettingsBuilder =
  *     ImageFamilyViewsSettings.newBuilder();
  * imageFamilyViewsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         imageFamilyViewsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         imageFamilyViewsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ImageFamilyViewsSettings imageFamilyViewsSettings = imageFamilyViewsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesClient.java
index abe213dd9..8b4cf9082 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ImagesClient imagesClient = ImagesClient.create()) {
  *   String project = "project-309310695";
  *   String image = "image100313435";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImagesSettings imagesSettings =
  *     ImagesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImagesSettings imagesSettings = ImagesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ImagesClient imagesClient = ImagesClient.create(imagesSettings);
  * }</pre>
@@ -156,8 +165,11 @@ public ImagesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String image = "image100313435";
@@ -182,8 +194,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   DeleteImageRequest request =
    *       DeleteImageRequest.newBuilder()
@@ -211,8 +226,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteImageReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   DeleteImageRequest request =
    *       DeleteImageRequest.newBuilder()
@@ -239,8 +257,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteImageReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   DeleteImageRequest request =
    *       DeleteImageRequest.newBuilder()
@@ -266,8 +287,11 @@ public final UnaryCallable<DeleteImageRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String image = "image100313435";
@@ -301,8 +325,11 @@ public final OperationFuture<Operation, Operation> deprecateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   DeprecateImageRequest request =
    *       DeprecateImageRequest.newBuilder()
@@ -332,8 +359,11 @@ public final OperationFuture<Operation, Operation> deprecateAsync(DeprecateImage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   DeprecateImageRequest request =
    *       DeprecateImageRequest.newBuilder()
@@ -362,8 +392,11 @@ public final OperationFuture<Operation, Operation> deprecateAsync(DeprecateImage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   DeprecateImageRequest request =
    *       DeprecateImageRequest.newBuilder()
@@ -389,8 +422,11 @@ public final UnaryCallable<DeprecateImageRequest, Operation> deprecateCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String image = "image100313435";
@@ -415,8 +451,11 @@ public final Image get(String project, String image) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   GetImageRequest request =
    *       GetImageRequest.newBuilder()
@@ -441,8 +480,11 @@ public final Image get(GetImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   GetImageRequest request =
    *       GetImageRequest.newBuilder()
@@ -466,8 +508,11 @@ public final UnaryCallable<GetImageRequest, Image> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String family = "family-1281860764";
@@ -492,8 +537,11 @@ public final Image getFromFamily(String project, String family) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   GetFromFamilyImageRequest request =
    *       GetFromFamilyImageRequest.newBuilder()
@@ -518,8 +566,11 @@ public final Image getFromFamily(GetFromFamilyImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   GetFromFamilyImageRequest request =
    *       GetFromFamilyImageRequest.newBuilder()
@@ -544,8 +595,11 @@ public final UnaryCallable<GetFromFamilyImageRequest, Image> getFromFamilyCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -571,8 +625,11 @@ public final Policy getIamPolicy(String project, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   GetIamPolicyImageRequest request =
    *       GetIamPolicyImageRequest.newBuilder()
@@ -599,8 +656,11 @@ public final Policy getIamPolicy(GetIamPolicyImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   GetIamPolicyImageRequest request =
    *       GetIamPolicyImageRequest.newBuilder()
@@ -625,8 +685,11 @@ public final UnaryCallable<GetIamPolicyImageRequest, Policy> getIamPolicyCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   Image imageResource = Image.newBuilder().build();
@@ -652,8 +715,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   InsertImageRequest request =
    *       InsertImageRequest.newBuilder()
@@ -682,8 +748,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertImageReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   InsertImageRequest request =
    *       InsertImageRequest.newBuilder()
@@ -711,8 +780,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertImageReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   InsertImageRequest request =
    *       InsertImageRequest.newBuilder()
@@ -742,8 +814,11 @@ public final UnaryCallable<InsertImageRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   for (Image element : imagesClient.list(project).iterateAll()) {
@@ -771,8 +846,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   ListImagesRequest request =
    *       ListImagesRequest.newBuilder()
@@ -807,8 +885,11 @@ public final ListPagedResponse list(ListImagesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   ListImagesRequest request =
    *       ListImagesRequest.newBuilder()
@@ -842,8 +923,11 @@ public final UnaryCallable<ListImagesRequest, ListPagedResponse> listPagedCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   ListImagesRequest request =
    *       ListImagesRequest.newBuilder()
@@ -881,8 +965,11 @@ public final UnaryCallable<ListImagesRequest, ImageList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String image = "image100313435";
@@ -915,8 +1002,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   PatchImageRequest request =
    *       PatchImageRequest.newBuilder()
@@ -946,8 +1036,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchImageRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   PatchImageRequest request =
    *       PatchImageRequest.newBuilder()
@@ -975,8 +1068,11 @@ public final OperationCallable<PatchImageRequest, Operation, Operation> patchOpe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   PatchImageRequest request =
    *       PatchImageRequest.newBuilder()
@@ -1002,8 +1098,11 @@ public final UnaryCallable<PatchImageRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -1037,8 +1136,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   SetIamPolicyImageRequest request =
    *       SetIamPolicyImageRequest.newBuilder()
@@ -1064,8 +1166,11 @@ public final Policy setIamPolicy(SetIamPolicyImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   SetIamPolicyImageRequest request =
    *       SetIamPolicyImageRequest.newBuilder()
@@ -1091,8 +1196,11 @@ public final UnaryCallable<SetIamPolicyImageRequest, Policy> setIamPolicyCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -1127,8 +1235,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   SetLabelsImageRequest request =
    *       SetLabelsImageRequest.newBuilder()
@@ -1157,8 +1268,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(SetLabelsImage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   SetLabelsImageRequest request =
    *       SetLabelsImageRequest.newBuilder()
@@ -1186,8 +1300,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(SetLabelsImage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   SetLabelsImageRequest request =
    *       SetLabelsImageRequest.newBuilder()
@@ -1212,8 +1329,11 @@ public final UnaryCallable<SetLabelsImageRequest, Operation> setLabelsCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -1247,8 +1367,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   TestIamPermissionsImageRequest request =
    *       TestIamPermissionsImageRequest.newBuilder()
@@ -1274,8 +1397,11 @@ public final TestPermissionsResponse testIamPermissions(TestIamPermissionsImageR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ImagesClient imagesClient = ImagesClient.create()) {
    *   TestIamPermissionsImageRequest request =
    *       TestIamPermissionsImageRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesSettings.java
index 54330184d..a5b7cdbab 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ImagesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImagesSettings.Builder imagesSettingsBuilder = ImagesSettings.newBuilder();
  * imagesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         imagesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         imagesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ImagesSettings imagesSettings = imagesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersClient.java
index 90db36f32..d793bb202 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstanceGroupManagersClient instanceGroupManagersClient =
  *     InstanceGroupManagersClient.create()) {
  *   String project = "project-309310695";
@@ -86,8 +89,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupManagersSettings instanceGroupManagersSettings =
  *     InstanceGroupManagersSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -99,8 +105,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupManagersSettings instanceGroupManagersSettings =
  *     InstanceGroupManagersSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InstanceGroupManagersClient instanceGroupManagersClient =
@@ -175,8 +184,11 @@ public InstanceGroupManagersStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -235,8 +247,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   AbandonInstancesInstanceGroupManagerRequest request =
@@ -278,8 +293,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   AbandonInstancesInstanceGroupManagerRequest request =
@@ -319,8 +337,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   AbandonInstancesInstanceGroupManagerRequest request =
@@ -351,8 +372,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -379,8 +403,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   AggregatedListInstanceGroupManagersRequest request =
@@ -415,8 +442,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   AggregatedListInstanceGroupManagersRequest request =
@@ -451,8 +481,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   AggregatedListInstanceGroupManagersRequest request =
@@ -495,8 +528,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -546,8 +582,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ApplyUpdatesToInstancesInstanceGroupManagerRequest request =
@@ -580,8 +619,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ApplyUpdatesToInstancesInstanceGroupManagerRequest request =
@@ -615,8 +657,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ApplyUpdatesToInstancesInstanceGroupManagerRequest request =
@@ -650,8 +695,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -707,8 +755,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   CreateInstancesInstanceGroupManagerRequest request =
@@ -745,8 +796,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   CreateInstancesInstanceGroupManagerRequest request =
@@ -781,8 +835,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   CreateInstancesInstanceGroupManagerRequest request =
@@ -815,8 +872,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -852,8 +912,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeleteInstanceGroupManagerRequest request =
@@ -886,8 +949,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeleteInstanceGroupManagerRequest request =
@@ -918,8 +984,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeleteInstanceGroupManagerRequest request =
@@ -955,8 +1024,11 @@ public final UnaryCallable<DeleteInstanceGroupManagerRequest, Operation> deleteC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1014,8 +1086,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeleteInstancesInstanceGroupManagerRequest request =
@@ -1056,8 +1131,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeleteInstancesInstanceGroupManagerRequest request =
@@ -1096,8 +1174,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeleteInstancesInstanceGroupManagerRequest request =
@@ -1128,8 +1209,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1182,8 +1266,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeletePerInstanceConfigsInstanceGroupManagerRequest request =
@@ -1215,8 +1302,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeletePerInstanceConfigsInstanceGroupManagerRequest request =
@@ -1249,8 +1339,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   DeletePerInstanceConfigsInstanceGroupManagerRequest request =
@@ -1281,8 +1374,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1316,8 +1412,11 @@ public final InstanceGroupManager get(String project, String zone, String instan
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   GetInstanceGroupManagerRequest request =
@@ -1345,8 +1444,11 @@ public final InstanceGroupManager get(GetInstanceGroupManagerRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   GetInstanceGroupManagerRequest request =
@@ -1378,8 +1480,11 @@ public final UnaryCallable<GetInstanceGroupManagerRequest, InstanceGroupManager>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1420,8 +1525,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   InsertInstanceGroupManagerRequest request =
@@ -1457,8 +1565,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   InsertInstanceGroupManagerRequest request =
@@ -1492,8 +1603,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   InsertInstanceGroupManagerRequest request =
@@ -1522,8 +1636,11 @@ public final UnaryCallable<InsertInstanceGroupManagerRequest, Operation> insertC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1553,8 +1670,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListInstanceGroupManagersRequest request =
@@ -1588,8 +1708,11 @@ public final ListPagedResponse list(ListInstanceGroupManagersRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListInstanceGroupManagersRequest request =
@@ -1624,8 +1747,11 @@ public final ListPagedResponse list(ListInstanceGroupManagersRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListInstanceGroupManagersRequest request =
@@ -1667,8 +1793,11 @@ public final ListPagedResponse list(ListInstanceGroupManagersRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1710,8 +1839,11 @@ public final ListErrorsPagedResponse listErrors(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListErrorsInstanceGroupManagersRequest request =
@@ -1747,8 +1879,11 @@ public final ListErrorsPagedResponse listErrors(ListErrorsInstanceGroupManagersR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListErrorsInstanceGroupManagersRequest request =
@@ -1784,8 +1919,11 @@ public final ListErrorsPagedResponse listErrors(ListErrorsInstanceGroupManagersR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListErrorsInstanceGroupManagersRequest request =
@@ -1834,8 +1972,11 @@ public final ListErrorsPagedResponse listErrors(ListErrorsInstanceGroupManagersR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1879,8 +2020,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListManagedInstancesInstanceGroupManagersRequest request =
@@ -1922,8 +2066,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListManagedInstancesInstanceGroupManagersRequest request =
@@ -1965,8 +2112,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListManagedInstancesInstanceGroupManagersRequest request =
@@ -2011,8 +2161,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2053,8 +2206,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListPerInstanceConfigsInstanceGroupManagersRequest request =
@@ -2091,8 +2247,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListPerInstanceConfigsInstanceGroupManagersRequest request =
@@ -2129,8 +2288,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ListPerInstanceConfigsInstanceGroupManagersRequest request =
@@ -2181,8 +2343,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2231,8 +2396,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   PatchInstanceGroupManagerRequest request =
@@ -2271,8 +2439,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   PatchInstanceGroupManagerRequest request =
@@ -2309,8 +2480,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   PatchInstanceGroupManagerRequest request =
@@ -2339,8 +2513,11 @@ public final UnaryCallable<PatchInstanceGroupManagerRequest, Operation> patchCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2394,8 +2571,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   PatchPerInstanceConfigsInstanceGroupManagerRequest request =
@@ -2429,8 +2609,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   PatchPerInstanceConfigsInstanceGroupManagerRequest request =
@@ -2465,8 +2648,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   PatchPerInstanceConfigsInstanceGroupManagerRequest request =
@@ -2504,8 +2690,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2562,8 +2751,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   RecreateInstancesInstanceGroupManagerRequest request =
@@ -2603,8 +2795,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   RecreateInstancesInstanceGroupManagerRequest request =
@@ -2642,8 +2837,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   RecreateInstancesInstanceGroupManagerRequest request =
@@ -2685,8 +2883,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2736,8 +2937,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ResizeInstanceGroupManagerRequest request =
@@ -2780,8 +2984,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ResizeInstanceGroupManagerRequest request =
@@ -2822,8 +3029,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   ResizeInstanceGroupManagerRequest request =
@@ -2854,8 +3064,11 @@ public final UnaryCallable<ResizeInstanceGroupManagerRequest, Operation> resizeC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2908,8 +3121,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   SetInstanceTemplateInstanceGroupManagerRequest request =
@@ -2944,8 +3160,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   SetInstanceTemplateInstanceGroupManagerRequest request =
@@ -2979,8 +3198,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   SetInstanceTemplateInstanceGroupManagerRequest request =
@@ -3015,8 +3237,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -3070,8 +3295,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   SetTargetPoolsInstanceGroupManagerRequest request =
@@ -3108,8 +3336,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   SetTargetPoolsInstanceGroupManagerRequest request =
@@ -3144,8 +3375,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   SetTargetPoolsInstanceGroupManagerRequest request =
@@ -3177,8 +3411,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -3232,8 +3469,11 @@ public final OperationFuture<Operation, Operation> updatePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   UpdatePerInstanceConfigsInstanceGroupManagerRequest request =
@@ -3267,8 +3507,11 @@ public final OperationFuture<Operation, Operation> updatePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   UpdatePerInstanceConfigsInstanceGroupManagerRequest request =
@@ -3303,8 +3546,11 @@ public final OperationFuture<Operation, Operation> updatePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupManagersClient instanceGroupManagersClient =
    *     InstanceGroupManagersClient.create()) {
    *   UpdatePerInstanceConfigsInstanceGroupManagerRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersSettings.java
index 60b953ae9..8dd29f02c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupManagersSettings.java
@@ -57,17 +57,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupManagersSettings.Builder instanceGroupManagersSettingsBuilder =
  *     InstanceGroupManagersSettings.newBuilder();
  * instanceGroupManagersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instanceGroupManagersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instanceGroupManagersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstanceGroupManagersSettings instanceGroupManagersSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsClient.java
index 8b85ccd44..29916ea3b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupsSettings instanceGroupsSettings =
  *     InstanceGroupsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupsSettings instanceGroupsSettings =
  *     InstanceGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create(instanceGroupsSettings);
@@ -162,8 +171,11 @@ public InstanceGroupsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -207,8 +219,11 @@ public final OperationFuture<Operation, Operation> addInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   AddInstancesInstanceGroupRequest request =
    *       AddInstancesInstanceGroupRequest.newBuilder()
@@ -241,8 +256,11 @@ public final OperationFuture<Operation, Operation> addInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   AddInstancesInstanceGroupRequest request =
    *       AddInstancesInstanceGroupRequest.newBuilder()
@@ -273,8 +291,11 @@ public final OperationFuture<Operation, Operation> addInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   AddInstancesInstanceGroupRequest request =
    *       AddInstancesInstanceGroupRequest.newBuilder()
@@ -302,8 +323,11 @@ public final UnaryCallable<AddInstancesInstanceGroupRequest, Operation> addInsta
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, InstanceGroupsScopedList> element :
@@ -329,8 +353,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   AggregatedListInstanceGroupsRequest request =
    *       AggregatedListInstanceGroupsRequest.newBuilder()
@@ -364,8 +391,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   AggregatedListInstanceGroupsRequest request =
    *       AggregatedListInstanceGroupsRequest.newBuilder()
@@ -398,8 +428,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   AggregatedListInstanceGroupsRequest request =
    *       AggregatedListInstanceGroupsRequest.newBuilder()
@@ -441,8 +474,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -476,8 +512,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   DeleteInstanceGroupRequest request =
    *       DeleteInstanceGroupRequest.newBuilder()
@@ -509,8 +548,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   DeleteInstanceGroupRequest request =
    *       DeleteInstanceGroupRequest.newBuilder()
@@ -540,8 +582,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   DeleteInstanceGroupRequest request =
    *       DeleteInstanceGroupRequest.newBuilder()
@@ -569,8 +614,11 @@ public final UnaryCallable<DeleteInstanceGroupRequest, Operation> deleteCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -603,8 +651,11 @@ public final InstanceGroup get(String project, String zone, String instanceGroup
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   GetInstanceGroupRequest request =
    *       GetInstanceGroupRequest.newBuilder()
@@ -632,8 +683,11 @@ public final InstanceGroup get(GetInstanceGroupRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   GetInstanceGroupRequest request =
    *       GetInstanceGroupRequest.newBuilder()
@@ -659,8 +713,11 @@ public final UnaryCallable<GetInstanceGroupRequest, InstanceGroup> getCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -694,8 +751,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   InsertInstanceGroupRequest request =
    *       InsertInstanceGroupRequest.newBuilder()
@@ -726,8 +786,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   InsertInstanceGroupRequest request =
    *       InsertInstanceGroupRequest.newBuilder()
@@ -756,8 +819,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   InsertInstanceGroupRequest request =
    *       InsertInstanceGroupRequest.newBuilder()
@@ -785,8 +851,11 @@ public final UnaryCallable<InsertInstanceGroupRequest, Operation> insertCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -815,8 +884,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   ListInstanceGroupsRequest request =
    *       ListInstanceGroupsRequest.newBuilder()
@@ -850,8 +922,11 @@ public final ListPagedResponse list(ListInstanceGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   ListInstanceGroupsRequest request =
    *       ListInstanceGroupsRequest.newBuilder()
@@ -885,8 +960,11 @@ public final UnaryCallable<ListInstanceGroupsRequest, ListPagedResponse> listPag
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   ListInstanceGroupsRequest request =
    *       ListInstanceGroupsRequest.newBuilder()
@@ -926,8 +1004,11 @@ public final UnaryCallable<ListInstanceGroupsRequest, InstanceGroupList> listCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -976,8 +1057,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   ListInstancesInstanceGroupsRequest request =
    *       ListInstancesInstanceGroupsRequest.newBuilder()
@@ -1016,8 +1100,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   ListInstancesInstanceGroupsRequest request =
    *       ListInstancesInstanceGroupsRequest.newBuilder()
@@ -1055,8 +1142,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   ListInstancesInstanceGroupsRequest request =
    *       ListInstancesInstanceGroupsRequest.newBuilder()
@@ -1102,8 +1192,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1151,8 +1244,11 @@ public final OperationFuture<Operation, Operation> removeInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   RemoveInstancesInstanceGroupRequest request =
    *       RemoveInstancesInstanceGroupRequest.newBuilder()
@@ -1187,8 +1283,11 @@ public final OperationFuture<Operation, Operation> removeInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   RemoveInstancesInstanceGroupRequest request =
    *       RemoveInstancesInstanceGroupRequest.newBuilder()
@@ -1221,8 +1320,11 @@ public final OperationFuture<Operation, Operation> removeInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   RemoveInstancesInstanceGroupRequest request =
    *       RemoveInstancesInstanceGroupRequest.newBuilder()
@@ -1252,8 +1354,11 @@ public final OperationFuture<Operation, Operation> removeInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1297,8 +1402,11 @@ public final OperationFuture<Operation, Operation> setNamedPortsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   SetNamedPortsInstanceGroupRequest request =
    *       SetNamedPortsInstanceGroupRequest.newBuilder()
@@ -1330,8 +1438,11 @@ public final OperationFuture<Operation, Operation> setNamedPortsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   SetNamedPortsInstanceGroupRequest request =
    *       SetNamedPortsInstanceGroupRequest.newBuilder()
@@ -1361,8 +1472,11 @@ public final OperationFuture<Operation, Operation> setNamedPortsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
    *   SetNamedPortsInstanceGroupRequest request =
    *       SetNamedPortsInstanceGroupRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsSettings.java
index 9274d06cf..9b3cbd52c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceGroupsSettings.java
@@ -55,17 +55,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupsSettings.Builder instanceGroupsSettingsBuilder =
  *     InstanceGroupsSettings.newBuilder();
  * instanceGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instanceGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instanceGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstanceGroupsSettings instanceGroupsSettings = instanceGroupsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesClient.java
index 95c0558ad..4f63577f8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
  *   String project = "project-309310695";
  *   String instanceTemplate = "instanceTemplate1009541167";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceTemplatesSettings instanceTemplatesSettings =
  *     InstanceTemplatesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceTemplatesSettings instanceTemplatesSettings =
  *     InstanceTemplatesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InstanceTemplatesClient instanceTemplatesClient =
@@ -164,8 +173,11 @@ public InstanceTemplatesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String instanceTemplate = "instanceTemplate1009541167";
@@ -196,8 +208,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   DeleteInstanceTemplateRequest request =
    *       DeleteInstanceTemplateRequest.newBuilder()
@@ -228,8 +243,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   DeleteInstanceTemplateRequest request =
    *       DeleteInstanceTemplateRequest.newBuilder()
@@ -258,8 +276,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   DeleteInstanceTemplateRequest request =
    *       DeleteInstanceTemplateRequest.newBuilder()
@@ -285,8 +306,11 @@ public final UnaryCallable<DeleteInstanceTemplateRequest, Operation> deleteCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String instanceTemplate = "instanceTemplate1009541167";
@@ -315,8 +339,11 @@ public final InstanceTemplate get(String project, String instanceTemplate) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   GetInstanceTemplateRequest request =
    *       GetInstanceTemplateRequest.newBuilder()
@@ -342,8 +369,11 @@ public final InstanceTemplate get(GetInstanceTemplateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   GetInstanceTemplateRequest request =
    *       GetInstanceTemplateRequest.newBuilder()
@@ -369,8 +399,11 @@ public final UnaryCallable<GetInstanceTemplateRequest, InstanceTemplate> getCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -399,8 +432,11 @@ public final Policy getIamPolicy(String project, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   GetIamPolicyInstanceTemplateRequest request =
    *       GetIamPolicyInstanceTemplateRequest.newBuilder()
@@ -427,8 +463,11 @@ public final Policy getIamPolicy(GetIamPolicyInstanceTemplateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   GetIamPolicyInstanceTemplateRequest request =
    *       GetIamPolicyInstanceTemplateRequest.newBuilder()
@@ -456,8 +495,11 @@ public final UnaryCallable<GetIamPolicyInstanceTemplateRequest, Policy> getIamPo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   InstanceTemplate instanceTemplateResource = InstanceTemplate.newBuilder().build();
@@ -490,8 +532,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   InsertInstanceTemplateRequest request =
    *       InsertInstanceTemplateRequest.newBuilder()
@@ -523,8 +568,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   InsertInstanceTemplateRequest request =
    *       InsertInstanceTemplateRequest.newBuilder()
@@ -554,8 +602,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   InsertInstanceTemplateRequest request =
    *       InsertInstanceTemplateRequest.newBuilder()
@@ -580,8 +631,11 @@ public final UnaryCallable<InsertInstanceTemplateRequest, Operation> insertCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   for (InstanceTemplate element : instanceTemplatesClient.list(project).iterateAll()) {
@@ -606,8 +660,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   ListInstanceTemplatesRequest request =
    *       ListInstanceTemplatesRequest.newBuilder()
@@ -638,8 +695,11 @@ public final ListPagedResponse list(ListInstanceTemplatesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   ListInstanceTemplatesRequest request =
    *       ListInstanceTemplatesRequest.newBuilder()
@@ -670,8 +730,11 @@ public final UnaryCallable<ListInstanceTemplatesRequest, ListPagedResponse> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   ListInstanceTemplatesRequest request =
    *       ListInstanceTemplatesRequest.newBuilder()
@@ -708,8 +771,11 @@ public final UnaryCallable<ListInstanceTemplatesRequest, InstanceTemplateList> l
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -743,8 +809,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   SetIamPolicyInstanceTemplateRequest request =
    *       SetIamPolicyInstanceTemplateRequest.newBuilder()
@@ -770,8 +839,11 @@ public final Policy setIamPolicy(SetIamPolicyInstanceTemplateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   SetIamPolicyInstanceTemplateRequest request =
    *       SetIamPolicyInstanceTemplateRequest.newBuilder()
@@ -796,8 +868,11 @@ public final UnaryCallable<SetIamPolicyInstanceTemplateRequest, Policy> setIamPo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -832,8 +907,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   TestIamPermissionsInstanceTemplateRequest request =
    *       TestIamPermissionsInstanceTemplateRequest.newBuilder()
@@ -860,8 +938,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
    *   TestIamPermissionsInstanceTemplateRequest request =
    *       TestIamPermissionsInstanceTemplateRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesSettings.java
index d3057270f..3c836b4cd 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstanceTemplatesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceTemplatesSettings.Builder instanceTemplatesSettingsBuilder =
  *     InstanceTemplatesSettings.newBuilder();
  * instanceTemplatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instanceTemplatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instanceTemplatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstanceTemplatesSettings instanceTemplatesSettings = instanceTemplatesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesClient.java
index 5e0bc7b2a..8c577fc76 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstancesClient instancesClient = InstancesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstancesSettings instancesSettings =
  *     InstancesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstancesSettings instancesSettings =
  *     InstancesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InstancesClient instancesClient = InstancesClient.create(instancesSettings);
@@ -159,8 +168,11 @@ public InstancesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -205,8 +217,11 @@ public final OperationFuture<Operation, Operation> addAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AddAccessConfigInstanceRequest request =
    *       AddAccessConfigInstanceRequest.newBuilder()
@@ -238,8 +253,11 @@ public final OperationFuture<Operation, Operation> addAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AddAccessConfigInstanceRequest request =
    *       AddAccessConfigInstanceRequest.newBuilder()
@@ -269,8 +287,11 @@ public final OperationFuture<Operation, Operation> addAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AddAccessConfigInstanceRequest request =
    *       AddAccessConfigInstanceRequest.newBuilder()
@@ -299,8 +320,11 @@ public final UnaryCallable<AddAccessConfigInstanceRequest, Operation> addAccessC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -345,8 +369,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AddResourcePoliciesInstanceRequest request =
    *       AddResourcePoliciesInstanceRequest.newBuilder()
@@ -379,8 +406,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AddResourcePoliciesInstanceRequest request =
    *       AddResourcePoliciesInstanceRequest.newBuilder()
@@ -411,8 +441,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AddResourcePoliciesInstanceRequest request =
    *       AddResourcePoliciesInstanceRequest.newBuilder()
@@ -444,8 +477,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, InstancesScopedList> element :
@@ -473,8 +509,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AggregatedListInstancesRequest request =
    *       AggregatedListInstancesRequest.newBuilder()
@@ -509,8 +548,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListInstancesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AggregatedListInstancesRequest request =
    *       AggregatedListInstancesRequest.newBuilder()
@@ -545,8 +587,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListInstancesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AggregatedListInstancesRequest request =
    *       AggregatedListInstancesRequest.newBuilder()
@@ -587,8 +632,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListInstancesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -626,8 +674,11 @@ public final OperationFuture<Operation, Operation> attachDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AttachDiskInstanceRequest request =
    *       AttachDiskInstanceRequest.newBuilder()
@@ -661,8 +712,11 @@ public final OperationFuture<Operation, Operation> attachDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AttachDiskInstanceRequest request =
    *       AttachDiskInstanceRequest.newBuilder()
@@ -694,8 +748,11 @@ public final OperationFuture<Operation, Operation> attachDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   AttachDiskInstanceRequest request =
    *       AttachDiskInstanceRequest.newBuilder()
@@ -724,8 +781,11 @@ public final UnaryCallable<AttachDiskInstanceRequest, Operation> attachDiskCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -760,8 +820,11 @@ public final OperationFuture<Operation, Operation> bulkInsertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   BulkInsertInstanceRequest request =
    *       BulkInsertInstanceRequest.newBuilder()
@@ -793,8 +856,11 @@ public final OperationFuture<Operation, Operation> bulkInsertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   BulkInsertInstanceRequest request =
    *       BulkInsertInstanceRequest.newBuilder()
@@ -824,8 +890,11 @@ public final OperationFuture<Operation, Operation> bulkInsertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   BulkInsertInstanceRequest request =
    *       BulkInsertInstanceRequest.newBuilder()
@@ -852,8 +921,11 @@ public final UnaryCallable<BulkInsertInstanceRequest, Operation> bulkInsertCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -885,8 +957,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DeleteInstanceRequest request =
    *       DeleteInstanceRequest.newBuilder()
@@ -915,8 +990,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DeleteInstanceRequest request =
    *       DeleteInstanceRequest.newBuilder()
@@ -944,8 +1022,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DeleteInstanceRequest request =
    *       DeleteInstanceRequest.newBuilder()
@@ -971,8 +1052,11 @@ public final UnaryCallable<DeleteInstanceRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1013,8 +1097,11 @@ public final OperationFuture<Operation, Operation> deleteAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DeleteAccessConfigInstanceRequest request =
    *       DeleteAccessConfigInstanceRequest.newBuilder()
@@ -1046,8 +1133,11 @@ public final OperationFuture<Operation, Operation> deleteAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DeleteAccessConfigInstanceRequest request =
    *       DeleteAccessConfigInstanceRequest.newBuilder()
@@ -1077,8 +1167,11 @@ public final OperationFuture<Operation, Operation> deleteAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DeleteAccessConfigInstanceRequest request =
    *       DeleteAccessConfigInstanceRequest.newBuilder()
@@ -1108,8 +1201,11 @@ public final OperationFuture<Operation, Operation> deleteAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1146,8 +1242,11 @@ public final OperationFuture<Operation, Operation> detachDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DetachDiskInstanceRequest request =
    *       DetachDiskInstanceRequest.newBuilder()
@@ -1178,8 +1277,11 @@ public final OperationFuture<Operation, Operation> detachDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DetachDiskInstanceRequest request =
    *       DetachDiskInstanceRequest.newBuilder()
@@ -1208,8 +1310,11 @@ public final OperationFuture<Operation, Operation> detachDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   DetachDiskInstanceRequest request =
    *       DetachDiskInstanceRequest.newBuilder()
@@ -1237,8 +1342,11 @@ public final UnaryCallable<DetachDiskInstanceRequest, Operation> detachDiskCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1270,8 +1378,11 @@ public final Instance get(String project, String zone, String instance) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetInstanceRequest request =
    *       GetInstanceRequest.newBuilder()
@@ -1298,8 +1409,11 @@ public final Instance get(GetInstanceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetInstanceRequest request =
    *       GetInstanceRequest.newBuilder()
@@ -1324,8 +1438,11 @@ public final UnaryCallable<GetInstanceRequest, Instance> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1361,8 +1478,11 @@ public final InstancesGetEffectiveFirewallsResponse getEffectiveFirewalls(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetEffectiveFirewallsInstanceRequest request =
    *       GetEffectiveFirewallsInstanceRequest.newBuilder()
@@ -1391,8 +1511,11 @@ public final InstancesGetEffectiveFirewallsResponse getEffectiveFirewalls(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetEffectiveFirewallsInstanceRequest request =
    *       GetEffectiveFirewallsInstanceRequest.newBuilder()
@@ -1421,8 +1544,11 @@ public final InstancesGetEffectiveFirewallsResponse getEffectiveFirewalls(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1453,8 +1579,11 @@ public final GuestAttributes getGuestAttributes(String project, String zone, Str
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetGuestAttributesInstanceRequest request =
    *       GetGuestAttributesInstanceRequest.newBuilder()
@@ -1482,8 +1611,11 @@ public final GuestAttributes getGuestAttributes(GetGuestAttributesInstanceReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetGuestAttributesInstanceRequest request =
    *       GetGuestAttributesInstanceRequest.newBuilder()
@@ -1513,8 +1645,11 @@ public final GuestAttributes getGuestAttributes(GetGuestAttributesInstanceReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1546,8 +1681,11 @@ public final Policy getIamPolicy(String project, String zone, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetIamPolicyInstanceRequest request =
    *       GetIamPolicyInstanceRequest.newBuilder()
@@ -1575,8 +1713,11 @@ public final Policy getIamPolicy(GetIamPolicyInstanceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetIamPolicyInstanceRequest request =
    *       GetIamPolicyInstanceRequest.newBuilder()
@@ -1602,8 +1743,11 @@ public final UnaryCallable<GetIamPolicyInstanceRequest, Policy> getIamPolicyCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1634,8 +1778,11 @@ public final Screenshot getScreenshot(String project, String zone, String instan
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetScreenshotInstanceRequest request =
    *       GetScreenshotInstanceRequest.newBuilder()
@@ -1661,8 +1808,11 @@ public final Screenshot getScreenshot(GetScreenshotInstanceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetScreenshotInstanceRequest request =
    *       GetScreenshotInstanceRequest.newBuilder()
@@ -1687,8 +1837,11 @@ public final UnaryCallable<GetScreenshotInstanceRequest, Screenshot> getScreensh
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1719,8 +1872,11 @@ public final SerialPortOutput getSerialPortOutput(String project, String zone, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetSerialPortOutputInstanceRequest request =
    *       GetSerialPortOutputInstanceRequest.newBuilder()
@@ -1748,8 +1904,11 @@ public final SerialPortOutput getSerialPortOutput(GetSerialPortOutputInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetSerialPortOutputInstanceRequest request =
    *       GetSerialPortOutputInstanceRequest.newBuilder()
@@ -1778,8 +1937,11 @@ public final SerialPortOutput getSerialPortOutput(GetSerialPortOutputInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1812,8 +1974,11 @@ public final ShieldedInstanceIdentity getShieldedInstanceIdentity(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetShieldedInstanceIdentityInstanceRequest request =
    *       GetShieldedInstanceIdentityInstanceRequest.newBuilder()
@@ -1840,8 +2005,11 @@ public final ShieldedInstanceIdentity getShieldedInstanceIdentity(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   GetShieldedInstanceIdentityInstanceRequest request =
    *       GetShieldedInstanceIdentityInstanceRequest.newBuilder()
@@ -1868,8 +2036,11 @@ public final ShieldedInstanceIdentity getShieldedInstanceIdentity(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1901,8 +2072,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   InsertInstanceRequest request =
    *       InsertInstanceRequest.newBuilder()
@@ -1933,8 +2107,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   InsertInstanceRequest request =
    *       InsertInstanceRequest.newBuilder()
@@ -1964,8 +2141,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   InsertInstanceRequest request =
    *       InsertInstanceRequest.newBuilder()
@@ -1993,8 +2173,11 @@ public final UnaryCallable<InsertInstanceRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2021,8 +2204,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ListInstancesRequest request =
    *       ListInstancesRequest.newBuilder()
@@ -2054,8 +2240,11 @@ public final ListPagedResponse list(ListInstancesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ListInstancesRequest request =
    *       ListInstancesRequest.newBuilder()
@@ -2086,8 +2275,11 @@ public final UnaryCallable<ListInstancesRequest, ListPagedResponse> listPagedCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ListInstancesRequest request =
    *       ListInstancesRequest.newBuilder()
@@ -2127,8 +2319,11 @@ public final UnaryCallable<ListInstancesRequest, InstanceList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2166,8 +2361,11 @@ public final ListReferrersPagedResponse listReferrers(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ListReferrersInstancesRequest request =
    *       ListReferrersInstancesRequest.newBuilder()
@@ -2202,8 +2400,11 @@ public final ListReferrersPagedResponse listReferrers(ListReferrersInstancesRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ListReferrersInstancesRequest request =
    *       ListReferrersInstancesRequest.newBuilder()
@@ -2239,8 +2440,11 @@ public final ListReferrersPagedResponse listReferrers(ListReferrersInstancesRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ListReferrersInstancesRequest request =
    *       ListReferrersInstancesRequest.newBuilder()
@@ -2280,8 +2484,11 @@ public final ListReferrersPagedResponse listReferrers(ListReferrersInstancesRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2325,8 +2532,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   RemoveResourcePoliciesInstanceRequest request =
    *       RemoveResourcePoliciesInstanceRequest.newBuilder()
@@ -2358,8 +2568,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   RemoveResourcePoliciesInstanceRequest request =
    *       RemoveResourcePoliciesInstanceRequest.newBuilder()
@@ -2389,8 +2602,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   RemoveResourcePoliciesInstanceRequest request =
    *       RemoveResourcePoliciesInstanceRequest.newBuilder()
@@ -2421,8 +2637,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2455,8 +2674,11 @@ public final OperationFuture<Operation, Operation> resetAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ResetInstanceRequest request =
    *       ResetInstanceRequest.newBuilder()
@@ -2486,8 +2708,11 @@ public final OperationFuture<Operation, Operation> resetAsync(ResetInstanceReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ResetInstanceRequest request =
    *       ResetInstanceRequest.newBuilder()
@@ -2516,8 +2741,11 @@ public final OperationFuture<Operation, Operation> resetAsync(ResetInstanceReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ResetInstanceRequest request =
    *       ResetInstanceRequest.newBuilder()
@@ -2543,8 +2771,11 @@ public final UnaryCallable<ResetInstanceRequest, Operation> resetCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2576,8 +2807,11 @@ public final OperationFuture<Operation, Operation> resumeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ResumeInstanceRequest request =
    *       ResumeInstanceRequest.newBuilder()
@@ -2606,8 +2840,11 @@ public final OperationFuture<Operation, Operation> resumeAsync(ResumeInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ResumeInstanceRequest request =
    *       ResumeInstanceRequest.newBuilder()
@@ -2635,8 +2872,11 @@ public final OperationFuture<Operation, Operation> resumeAsync(ResumeInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   ResumeInstanceRequest request =
    *       ResumeInstanceRequest.newBuilder()
@@ -2662,8 +2902,11 @@ public final UnaryCallable<ResumeInstanceRequest, Operation> resumeCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2696,8 +2939,11 @@ public final SendDiagnosticInterruptInstanceResponse sendDiagnosticInterrupt(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SendDiagnosticInterruptInstanceRequest request =
    *       SendDiagnosticInterruptInstanceRequest.newBuilder()
@@ -2725,8 +2971,11 @@ public final SendDiagnosticInterruptInstanceResponse sendDiagnosticInterrupt(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SendDiagnosticInterruptInstanceRequest request =
    *       SendDiagnosticInterruptInstanceRequest.newBuilder()
@@ -2754,8 +3003,11 @@ public final SendDiagnosticInterruptInstanceResponse sendDiagnosticInterrupt(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2788,8 +3040,11 @@ public final OperationFuture<Operation, Operation> setDeletionProtectionAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetDeletionProtectionInstanceRequest request =
    *       SetDeletionProtectionInstanceRequest.newBuilder()
@@ -2820,8 +3075,11 @@ public final OperationFuture<Operation, Operation> setDeletionProtectionAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetDeletionProtectionInstanceRequest request =
    *       SetDeletionProtectionInstanceRequest.newBuilder()
@@ -2850,8 +3108,11 @@ public final OperationFuture<Operation, Operation> setDeletionProtectionAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetDeletionProtectionInstanceRequest request =
    *       SetDeletionProtectionInstanceRequest.newBuilder()
@@ -2880,8 +3141,11 @@ public final OperationFuture<Operation, Operation> setDeletionProtectionAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -2923,8 +3187,11 @@ public final OperationFuture<Operation, Operation> setDiskAutoDeleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetDiskAutoDeleteInstanceRequest request =
    *       SetDiskAutoDeleteInstanceRequest.newBuilder()
@@ -2956,8 +3223,11 @@ public final OperationFuture<Operation, Operation> setDiskAutoDeleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetDiskAutoDeleteInstanceRequest request =
    *       SetDiskAutoDeleteInstanceRequest.newBuilder()
@@ -2987,8 +3257,11 @@ public final OperationFuture<Operation, Operation> setDiskAutoDeleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetDiskAutoDeleteInstanceRequest request =
    *       SetDiskAutoDeleteInstanceRequest.newBuilder()
@@ -3017,8 +3290,11 @@ public final OperationFuture<Operation, Operation> setDiskAutoDeleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3057,8 +3333,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetIamPolicyInstanceRequest request =
    *       SetIamPolicyInstanceRequest.newBuilder()
@@ -3085,8 +3364,11 @@ public final Policy setIamPolicy(SetIamPolicyInstanceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetIamPolicyInstanceRequest request =
    *       SetIamPolicyInstanceRequest.newBuilder()
@@ -3113,8 +3395,11 @@ public final UnaryCallable<SetIamPolicyInstanceRequest, Policy> setIamPolicyCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3157,8 +3442,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetLabelsInstanceRequest request =
    *       SetLabelsInstanceRequest.newBuilder()
@@ -3190,8 +3478,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetLabelsInstanceRequest request =
    *       SetLabelsInstanceRequest.newBuilder()
@@ -3221,8 +3512,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetLabelsInstanceRequest request =
    *       SetLabelsInstanceRequest.newBuilder()
@@ -3250,8 +3544,11 @@ public final UnaryCallable<SetLabelsInstanceRequest, Operation> setLabelsCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3296,8 +3593,11 @@ public final OperationFuture<Operation, Operation> setMachineResourcesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMachineResourcesInstanceRequest request =
    *       SetMachineResourcesInstanceRequest.newBuilder()
@@ -3330,8 +3630,11 @@ public final OperationFuture<Operation, Operation> setMachineResourcesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMachineResourcesInstanceRequest request =
    *       SetMachineResourcesInstanceRequest.newBuilder()
@@ -3362,8 +3665,11 @@ public final OperationFuture<Operation, Operation> setMachineResourcesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMachineResourcesInstanceRequest request =
    *       SetMachineResourcesInstanceRequest.newBuilder()
@@ -3393,8 +3699,11 @@ public final OperationFuture<Operation, Operation> setMachineResourcesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3436,8 +3745,11 @@ public final OperationFuture<Operation, Operation> setMachineTypeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMachineTypeInstanceRequest request =
    *       SetMachineTypeInstanceRequest.newBuilder()
@@ -3469,8 +3781,11 @@ public final OperationFuture<Operation, Operation> setMachineTypeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMachineTypeInstanceRequest request =
    *       SetMachineTypeInstanceRequest.newBuilder()
@@ -3500,8 +3815,11 @@ public final OperationFuture<Operation, Operation> setMachineTypeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMachineTypeInstanceRequest request =
    *       SetMachineTypeInstanceRequest.newBuilder()
@@ -3529,8 +3847,11 @@ public final UnaryCallable<SetMachineTypeInstanceRequest, Operation> setMachineT
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3566,8 +3887,11 @@ public final OperationFuture<Operation, Operation> setMetadataAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMetadataInstanceRequest request =
    *       SetMetadataInstanceRequest.newBuilder()
@@ -3598,8 +3922,11 @@ public final OperationFuture<Operation, Operation> setMetadataAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMetadataInstanceRequest request =
    *       SetMetadataInstanceRequest.newBuilder()
@@ -3628,8 +3955,11 @@ public final OperationFuture<Operation, Operation> setMetadataAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMetadataInstanceRequest request =
    *       SetMetadataInstanceRequest.newBuilder()
@@ -3657,8 +3987,11 @@ public final UnaryCallable<SetMetadataInstanceRequest, Operation> setMetadataCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3702,8 +4035,11 @@ public final OperationFuture<Operation, Operation> setMinCpuPlatformAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMinCpuPlatformInstanceRequest request =
    *       SetMinCpuPlatformInstanceRequest.newBuilder()
@@ -3736,8 +4072,11 @@ public final OperationFuture<Operation, Operation> setMinCpuPlatformAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMinCpuPlatformInstanceRequest request =
    *       SetMinCpuPlatformInstanceRequest.newBuilder()
@@ -3768,8 +4107,11 @@ public final OperationFuture<Operation, Operation> setMinCpuPlatformAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetMinCpuPlatformInstanceRequest request =
    *       SetMinCpuPlatformInstanceRequest.newBuilder()
@@ -3801,8 +4143,11 @@ public final OperationFuture<Operation, Operation> setMinCpuPlatformAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3841,8 +4186,11 @@ public final OperationFuture<Operation, Operation> setSchedulingAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetSchedulingInstanceRequest request =
    *       SetSchedulingInstanceRequest.newBuilder()
@@ -3876,8 +4224,11 @@ public final OperationFuture<Operation, Operation> setSchedulingAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetSchedulingInstanceRequest request =
    *       SetSchedulingInstanceRequest.newBuilder()
@@ -3909,8 +4260,11 @@ public final OperationFuture<Operation, Operation> setSchedulingAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetSchedulingInstanceRequest request =
    *       SetSchedulingInstanceRequest.newBuilder()
@@ -3938,8 +4292,11 @@ public final UnaryCallable<SetSchedulingInstanceRequest, Operation> setSchedulin
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -3983,8 +4340,11 @@ public final OperationFuture<Operation, Operation> setServiceAccountAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetServiceAccountInstanceRequest request =
    *       SetServiceAccountInstanceRequest.newBuilder()
@@ -4017,8 +4377,11 @@ public final OperationFuture<Operation, Operation> setServiceAccountAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetServiceAccountInstanceRequest request =
    *       SetServiceAccountInstanceRequest.newBuilder()
@@ -4049,8 +4412,11 @@ public final OperationFuture<Operation, Operation> setServiceAccountAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetServiceAccountInstanceRequest request =
    *       SetServiceAccountInstanceRequest.newBuilder()
@@ -4081,8 +4447,11 @@ public final OperationFuture<Operation, Operation> setServiceAccountAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4127,8 +4496,11 @@ public final OperationFuture<Operation, Operation> setShieldedInstanceIntegrityP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetShieldedInstanceIntegrityPolicyInstanceRequest request =
    *       SetShieldedInstanceIntegrityPolicyInstanceRequest.newBuilder()
@@ -4162,8 +4534,11 @@ public final OperationFuture<Operation, Operation> setShieldedInstanceIntegrityP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetShieldedInstanceIntegrityPolicyInstanceRequest request =
    *       SetShieldedInstanceIntegrityPolicyInstanceRequest.newBuilder()
@@ -4196,8 +4571,11 @@ public final OperationFuture<Operation, Operation> setShieldedInstanceIntegrityP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetShieldedInstanceIntegrityPolicyInstanceRequest request =
    *       SetShieldedInstanceIntegrityPolicyInstanceRequest.newBuilder()
@@ -4227,8 +4605,11 @@ public final OperationFuture<Operation, Operation> setShieldedInstanceIntegrityP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4264,8 +4645,11 @@ public final OperationFuture<Operation, Operation> setTagsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetTagsInstanceRequest request =
    *       SetTagsInstanceRequest.newBuilder()
@@ -4295,8 +4679,11 @@ public final OperationFuture<Operation, Operation> setTagsAsync(SetTagsInstanceR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetTagsInstanceRequest request =
    *       SetTagsInstanceRequest.newBuilder()
@@ -4325,8 +4712,11 @@ public final OperationFuture<Operation, Operation> setTagsAsync(SetTagsInstanceR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SetTagsInstanceRequest request =
    *       SetTagsInstanceRequest.newBuilder()
@@ -4354,8 +4744,11 @@ public final UnaryCallable<SetTagsInstanceRequest, Operation> setTagsCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4389,8 +4782,11 @@ public final OperationFuture<Operation, Operation> simulateMaintenanceEventAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SimulateMaintenanceEventInstanceRequest request =
    *       SimulateMaintenanceEventInstanceRequest.newBuilder()
@@ -4420,8 +4816,11 @@ public final OperationFuture<Operation, Operation> simulateMaintenanceEventAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SimulateMaintenanceEventInstanceRequest request =
    *       SimulateMaintenanceEventInstanceRequest.newBuilder()
@@ -4449,8 +4848,11 @@ public final OperationFuture<Operation, Operation> simulateMaintenanceEventAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SimulateMaintenanceEventInstanceRequest request =
    *       SimulateMaintenanceEventInstanceRequest.newBuilder()
@@ -4478,8 +4880,11 @@ public final OperationFuture<Operation, Operation> simulateMaintenanceEventAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4512,8 +4917,11 @@ public final OperationFuture<Operation, Operation> startAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StartInstanceRequest request =
    *       StartInstanceRequest.newBuilder()
@@ -4543,8 +4951,11 @@ public final OperationFuture<Operation, Operation> startAsync(StartInstanceReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StartInstanceRequest request =
    *       StartInstanceRequest.newBuilder()
@@ -4573,8 +4984,11 @@ public final OperationFuture<Operation, Operation> startAsync(StartInstanceReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StartInstanceRequest request =
    *       StartInstanceRequest.newBuilder()
@@ -4601,8 +5015,11 @@ public final UnaryCallable<StartInstanceRequest, Operation> startCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4647,8 +5064,11 @@ public final OperationFuture<Operation, Operation> startWithEncryptionKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StartWithEncryptionKeyInstanceRequest request =
    *       StartWithEncryptionKeyInstanceRequest.newBuilder()
@@ -4681,8 +5101,11 @@ public final OperationFuture<Operation, Operation> startWithEncryptionKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StartWithEncryptionKeyInstanceRequest request =
    *       StartWithEncryptionKeyInstanceRequest.newBuilder()
@@ -4713,8 +5136,11 @@ public final OperationFuture<Operation, Operation> startWithEncryptionKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StartWithEncryptionKeyInstanceRequest request =
    *       StartWithEncryptionKeyInstanceRequest.newBuilder()
@@ -4747,8 +5173,11 @@ public final OperationFuture<Operation, Operation> startWithEncryptionKeyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4783,8 +5212,11 @@ public final OperationFuture<Operation, Operation> stopAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StopInstanceRequest request =
    *       StopInstanceRequest.newBuilder()
@@ -4816,8 +5248,11 @@ public final OperationFuture<Operation, Operation> stopAsync(StopInstanceRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StopInstanceRequest request =
    *       StopInstanceRequest.newBuilder()
@@ -4848,8 +5283,11 @@ public final OperationFuture<Operation, Operation> stopAsync(StopInstanceRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   StopInstanceRequest request =
    *       StopInstanceRequest.newBuilder()
@@ -4880,8 +5318,11 @@ public final UnaryCallable<StopInstanceRequest, Operation> stopCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -4918,8 +5359,11 @@ public final OperationFuture<Operation, Operation> suspendAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SuspendInstanceRequest request =
    *       SuspendInstanceRequest.newBuilder()
@@ -4953,8 +5397,11 @@ public final OperationFuture<Operation, Operation> suspendAsync(SuspendInstanceR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SuspendInstanceRequest request =
    *       SuspendInstanceRequest.newBuilder()
@@ -4987,8 +5434,11 @@ public final OperationFuture<Operation, Operation> suspendAsync(SuspendInstanceR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   SuspendInstanceRequest request =
    *       SuspendInstanceRequest.newBuilder()
@@ -5014,8 +5464,11 @@ public final UnaryCallable<SuspendInstanceRequest, Operation> suspendCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -5056,8 +5509,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   TestIamPermissionsInstanceRequest request =
    *       TestIamPermissionsInstanceRequest.newBuilder()
@@ -5085,8 +5541,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   TestIamPermissionsInstanceRequest request =
    *       TestIamPermissionsInstanceRequest.newBuilder()
@@ -5116,8 +5575,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -5155,8 +5617,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateInstanceRequest request =
    *       UpdateInstanceRequest.newBuilder()
@@ -5190,8 +5655,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateInstanceRequest request =
    *       UpdateInstanceRequest.newBuilder()
@@ -5224,8 +5692,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateInstanceReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateInstanceRequest request =
    *       UpdateInstanceRequest.newBuilder()
@@ -5256,8 +5727,11 @@ public final UnaryCallable<UpdateInstanceRequest, Operation> updateCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -5305,8 +5779,11 @@ public final OperationFuture<Operation, Operation> updateAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateAccessConfigInstanceRequest request =
    *       UpdateAccessConfigInstanceRequest.newBuilder()
@@ -5340,8 +5817,11 @@ public final OperationFuture<Operation, Operation> updateAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateAccessConfigInstanceRequest request =
    *       UpdateAccessConfigInstanceRequest.newBuilder()
@@ -5373,8 +5853,11 @@ public final OperationFuture<Operation, Operation> updateAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateAccessConfigInstanceRequest request =
    *       UpdateAccessConfigInstanceRequest.newBuilder()
@@ -5406,8 +5889,11 @@ public final OperationFuture<Operation, Operation> updateAccessConfigAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -5447,8 +5933,11 @@ public final OperationFuture<Operation, Operation> updateDisplayDeviceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateDisplayDeviceInstanceRequest request =
    *       UpdateDisplayDeviceInstanceRequest.newBuilder()
@@ -5481,8 +5970,11 @@ public final OperationFuture<Operation, Operation> updateDisplayDeviceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateDisplayDeviceInstanceRequest request =
    *       UpdateDisplayDeviceInstanceRequest.newBuilder()
@@ -5513,8 +6005,11 @@ public final OperationFuture<Operation, Operation> updateDisplayDeviceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateDisplayDeviceInstanceRequest request =
    *       UpdateDisplayDeviceInstanceRequest.newBuilder()
@@ -5546,8 +6041,11 @@ public final OperationFuture<Operation, Operation> updateDisplayDeviceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -5596,8 +6094,11 @@ public final OperationFuture<Operation, Operation> updateNetworkInterfaceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateNetworkInterfaceInstanceRequest request =
    *       UpdateNetworkInterfaceInstanceRequest.newBuilder()
@@ -5632,8 +6133,11 @@ public final OperationFuture<Operation, Operation> updateNetworkInterfaceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateNetworkInterfaceInstanceRequest request =
    *       UpdateNetworkInterfaceInstanceRequest.newBuilder()
@@ -5666,8 +6170,11 @@ public final OperationFuture<Operation, Operation> updateNetworkInterfaceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateNetworkInterfaceInstanceRequest request =
    *       UpdateNetworkInterfaceInstanceRequest.newBuilder()
@@ -5699,8 +6206,11 @@ public final OperationFuture<Operation, Operation> updateNetworkInterfaceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -5745,8 +6255,11 @@ public final OperationFuture<Operation, Operation> updateShieldedInstanceConfigA
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateShieldedInstanceConfigInstanceRequest request =
    *       UpdateShieldedInstanceConfigInstanceRequest.newBuilder()
@@ -5779,8 +6292,11 @@ public final OperationFuture<Operation, Operation> updateShieldedInstanceConfigA
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateShieldedInstanceConfigInstanceRequest request =
    *       UpdateShieldedInstanceConfigInstanceRequest.newBuilder()
@@ -5811,8 +6327,11 @@ public final OperationFuture<Operation, Operation> updateShieldedInstanceConfigA
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InstancesClient instancesClient = InstancesClient.create()) {
    *   UpdateShieldedInstanceConfigInstanceRequest request =
    *       UpdateShieldedInstanceConfigInstanceRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesSettings.java
index cc72ae939..034908fe6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InstancesSettings.java
@@ -55,16 +55,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstancesSettings.Builder instancesSettingsBuilder = InstancesSettings.newBuilder();
  * instancesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instancesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instancesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstancesSettings instancesSettings = instancesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsClient.java
index d82948515..0c6adfee2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
  *     InterconnectAttachmentsClient.create()) {
  *   String project = "project-309310695";
@@ -86,8 +89,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectAttachmentsSettings interconnectAttachmentsSettings =
  *     InterconnectAttachmentsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -99,8 +105,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectAttachmentsSettings interconnectAttachmentsSettings =
  *     InterconnectAttachmentsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InterconnectAttachmentsClient interconnectAttachmentsClient =
@@ -167,8 +176,11 @@ public InterconnectAttachmentsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   String project = "project-309310695";
@@ -195,8 +207,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   AggregatedListInterconnectAttachmentsRequest request =
@@ -231,8 +246,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   AggregatedListInterconnectAttachmentsRequest request =
@@ -268,8 +286,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   AggregatedListInterconnectAttachmentsRequest request =
@@ -312,8 +333,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   String project = "project-309310695";
@@ -347,8 +371,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   DeleteInterconnectAttachmentRequest request =
@@ -379,8 +406,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   DeleteInterconnectAttachmentRequest request =
@@ -409,8 +439,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   DeleteInterconnectAttachmentRequest request =
@@ -438,8 +471,11 @@ public final UnaryCallable<DeleteInterconnectAttachmentRequest, Operation> delet
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   String project = "project-309310695";
@@ -473,8 +509,11 @@ public final InterconnectAttachment get(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   GetInterconnectAttachmentRequest request =
@@ -501,8 +540,11 @@ public final InterconnectAttachment get(GetInterconnectAttachmentRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   GetInterconnectAttachmentRequest request =
@@ -531,8 +573,11 @@ public final InterconnectAttachment get(GetInterconnectAttachmentRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   String project = "project-309310695";
@@ -570,8 +615,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   InsertInterconnectAttachmentRequest request =
@@ -604,8 +652,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   InsertInterconnectAttachmentRequest request =
@@ -636,8 +687,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   InsertInterconnectAttachmentRequest request =
@@ -666,8 +720,11 @@ public final UnaryCallable<InsertInterconnectAttachmentRequest, Operation> inser
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   String project = "project-309310695";
@@ -699,8 +756,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   ListInterconnectAttachmentsRequest request =
@@ -734,8 +794,11 @@ public final ListPagedResponse list(ListInterconnectAttachmentsRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   ListInterconnectAttachmentsRequest request =
@@ -769,8 +832,11 @@ public final ListPagedResponse list(ListInterconnectAttachmentsRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   ListInterconnectAttachmentsRequest request =
@@ -812,8 +878,11 @@ public final ListPagedResponse list(ListInterconnectAttachmentsRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   String project = "project-309310695";
@@ -857,8 +926,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   PatchInterconnectAttachmentRequest request =
@@ -891,8 +963,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   PatchInterconnectAttachmentRequest request =
@@ -923,8 +998,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
    *     InterconnectAttachmentsClient.create()) {
    *   PatchInterconnectAttachmentRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsSettings.java
index e3cdf4e13..6770b0bc8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectAttachmentsSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectAttachmentsSettings.Builder interconnectAttachmentsSettingsBuilder =
  *     InterconnectAttachmentsSettings.newBuilder();
  * interconnectAttachmentsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         interconnectAttachmentsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         interconnectAttachmentsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InterconnectAttachmentsSettings interconnectAttachmentsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsClient.java
index 8eb2f1316..0cbc1be69 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InterconnectLocationsClient interconnectLocationsClient =
  *     InterconnectLocationsClient.create()) {
  *   String project = "project-309310695";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectLocationsSettings interconnectLocationsSettings =
  *     InterconnectLocationsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectLocationsSettings interconnectLocationsSettings =
  *     InterconnectLocationsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InterconnectLocationsClient interconnectLocationsClient =
@@ -162,8 +171,11 @@ public InterconnectLocationsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   String project = "project-309310695";
@@ -194,8 +206,11 @@ public final InterconnectLocation get(String project, String interconnectLocatio
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   GetInterconnectLocationRequest request =
@@ -222,8 +237,11 @@ public final InterconnectLocation get(GetInterconnectLocationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   GetInterconnectLocationRequest request =
@@ -249,8 +267,11 @@ public final UnaryCallable<GetInterconnectLocationRequest, InterconnectLocation>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   String project = "project-309310695";
@@ -276,8 +297,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   ListInterconnectLocationsRequest request =
@@ -309,8 +333,11 @@ public final ListPagedResponse list(ListInterconnectLocationsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   ListInterconnectLocationsRequest request =
@@ -343,8 +370,11 @@ public final ListPagedResponse list(ListInterconnectLocationsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectLocationsClient interconnectLocationsClient =
    *     InterconnectLocationsClient.create()) {
    *   ListInterconnectLocationsRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsSettings.java
index 24ba8a5c1..6a2fd45c8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectLocationsSettings.java
@@ -52,17 +52,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectLocationsSettings.Builder interconnectLocationsSettingsBuilder =
  *     InterconnectLocationsSettings.newBuilder();
  * interconnectLocationsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         interconnectLocationsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         interconnectLocationsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InterconnectLocationsSettings interconnectLocationsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsClient.java
index 3b96ddef6..e3e621c61 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
  *   String project = "project-309310695";
  *   String interconnect = "interconnect-849140594";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectsSettings interconnectsSettings =
  *     InterconnectsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectsSettings interconnectsSettings =
  *     InterconnectsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * InterconnectsClient interconnectsClient = InterconnectsClient.create(interconnectsSettings);
@@ -159,8 +168,11 @@ public InterconnectsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   String project = "project-309310695";
    *   String interconnect = "interconnect-849140594";
@@ -189,8 +201,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   DeleteInterconnectRequest request =
    *       DeleteInterconnectRequest.newBuilder()
@@ -219,8 +234,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   DeleteInterconnectRequest request =
    *       DeleteInterconnectRequest.newBuilder()
@@ -247,8 +265,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   DeleteInterconnectRequest request =
    *       DeleteInterconnectRequest.newBuilder()
@@ -274,8 +295,11 @@ public final UnaryCallable<DeleteInterconnectRequest, Operation> deleteCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   String project = "project-309310695";
    *   String interconnect = "interconnect-849140594";
@@ -304,8 +328,11 @@ public final Interconnect get(String project, String interconnect) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   GetInterconnectRequest request =
    *       GetInterconnectRequest.newBuilder()
@@ -331,8 +358,11 @@ public final Interconnect get(GetInterconnectRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   GetInterconnectRequest request =
    *       GetInterconnectRequest.newBuilder()
@@ -356,8 +386,11 @@ public final UnaryCallable<GetInterconnectRequest, Interconnect> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   String project = "project-309310695";
    *   String interconnect = "interconnect-849140594";
@@ -387,8 +420,11 @@ public final InterconnectsGetDiagnosticsResponse getDiagnostics(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   GetDiagnosticsInterconnectRequest request =
    *       GetDiagnosticsInterconnectRequest.newBuilder()
@@ -414,8 +450,11 @@ public final InterconnectsGetDiagnosticsResponse getDiagnostics(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   GetDiagnosticsInterconnectRequest request =
    *       GetDiagnosticsInterconnectRequest.newBuilder()
@@ -441,8 +480,11 @@ public final InterconnectsGetDiagnosticsResponse getDiagnostics(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   String project = "project-309310695";
    *   Interconnect interconnectResource = Interconnect.newBuilder().build();
@@ -471,8 +513,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   InsertInterconnectRequest request =
    *       InsertInterconnectRequest.newBuilder()
@@ -501,8 +546,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   InsertInterconnectRequest request =
    *       InsertInterconnectRequest.newBuilder()
@@ -529,8 +577,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   InsertInterconnectRequest request =
    *       InsertInterconnectRequest.newBuilder()
@@ -555,8 +606,11 @@ public final UnaryCallable<InsertInterconnectRequest, Operation> insertCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   String project = "project-309310695";
    *   for (Interconnect element : interconnectsClient.list(project).iterateAll()) {
@@ -581,8 +635,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   ListInterconnectsRequest request =
    *       ListInterconnectsRequest.newBuilder()
@@ -613,8 +670,11 @@ public final ListPagedResponse list(ListInterconnectsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   ListInterconnectsRequest request =
    *       ListInterconnectsRequest.newBuilder()
@@ -644,8 +704,11 @@ public final UnaryCallable<ListInterconnectsRequest, ListPagedResponse> listPage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   ListInterconnectsRequest request =
    *       ListInterconnectsRequest.newBuilder()
@@ -683,8 +746,11 @@ public final UnaryCallable<ListInterconnectsRequest, InterconnectList> listCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   String project = "project-309310695";
    *   String interconnect = "interconnect-849140594";
@@ -718,8 +784,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   PatchInterconnectRequest request =
    *       PatchInterconnectRequest.newBuilder()
@@ -749,8 +818,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchInterconnectR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   PatchInterconnectRequest request =
    *       PatchInterconnectRequest.newBuilder()
@@ -779,8 +851,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchInterconnectR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
    *   PatchInterconnectRequest request =
    *       PatchInterconnectRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsSettings.java
index 163762c84..a4b8d8d92 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/InterconnectsSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectsSettings.Builder interconnectsSettingsBuilder = InterconnectsSettings.newBuilder();
  * interconnectsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         interconnectsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         interconnectsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InterconnectsSettings interconnectsSettings = interconnectsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesClient.java
index 3d0f7644f..61a29a536 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesClient.java
@@ -32,8 +32,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
  *   String project = "project-309310695";
  *   String licenseCode = "licenseCode-641557042";
@@ -70,8 +73,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicenseCodesSettings licenseCodesSettings =
  *     LicenseCodesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -82,8 +88,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicenseCodesSettings licenseCodesSettings =
  *     LicenseCodesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * LicenseCodesClient licenseCodesClient = LicenseCodesClient.create(licenseCodesSettings);
@@ -149,8 +158,11 @@ public LicenseCodesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
    *   String project = "project-309310695";
    *   String licenseCode = "licenseCode-641557042";
@@ -177,8 +189,11 @@ public final LicenseCode get(String project, String licenseCode) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
    *   GetLicenseCodeRequest request =
    *       GetLicenseCodeRequest.newBuilder()
@@ -205,8 +220,11 @@ public final LicenseCode get(GetLicenseCodeRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
    *   GetLicenseCodeRequest request =
    *       GetLicenseCodeRequest.newBuilder()
@@ -232,8 +250,11 @@ public final UnaryCallable<GetLicenseCodeRequest, LicenseCode> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -269,8 +290,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
    *   TestIamPermissionsLicenseCodeRequest request =
    *       TestIamPermissionsLicenseCodeRequest.newBuilder()
@@ -299,8 +323,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
    *   TestIamPermissionsLicenseCodeRequest request =
    *       TestIamPermissionsLicenseCodeRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesSettings.java
index ffa516ba2..a13e884d9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicenseCodesSettings.java
@@ -49,16 +49,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicenseCodesSettings.Builder licenseCodesSettingsBuilder = LicenseCodesSettings.newBuilder();
  * licenseCodesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         licenseCodesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         licenseCodesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * LicenseCodesSettings licenseCodesSettings = licenseCodesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesClient.java
index 728405ed7..89d7ad921 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (LicensesClient licensesClient = LicensesClient.create()) {
  *   String project = "project-309310695";
  *   String license = "license166757441";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicensesSettings licensesSettings =
  *     LicensesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicensesSettings licensesSettings =
  *     LicensesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * LicensesClient licensesClient = LicensesClient.create(licensesSettings);
@@ -158,8 +167,11 @@ public LicensesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   String license = "license166757441";
@@ -185,8 +197,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   DeleteLicenseRequest request =
    *       DeleteLicenseRequest.newBuilder()
@@ -215,8 +230,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteLicenseRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   DeleteLicenseRequest request =
    *       DeleteLicenseRequest.newBuilder()
@@ -244,8 +262,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteLicenseRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   DeleteLicenseRequest request =
    *       DeleteLicenseRequest.newBuilder()
@@ -271,8 +292,11 @@ public final UnaryCallable<DeleteLicenseRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   String license = "license166757441";
@@ -298,8 +322,11 @@ public final License get(String project, String license) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   GetLicenseRequest request =
    *       GetLicenseRequest.newBuilder()
@@ -325,8 +352,11 @@ public final License get(GetLicenseRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   GetLicenseRequest request =
    *       GetLicenseRequest.newBuilder()
@@ -352,8 +382,11 @@ public final UnaryCallable<GetLicenseRequest, License> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -380,8 +413,11 @@ public final Policy getIamPolicy(String project, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   GetIamPolicyLicenseRequest request =
    *       GetIamPolicyLicenseRequest.newBuilder()
@@ -409,8 +445,11 @@ public final Policy getIamPolicy(GetIamPolicyLicenseRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   GetIamPolicyLicenseRequest request =
    *       GetIamPolicyLicenseRequest.newBuilder()
@@ -436,8 +475,11 @@ public final UnaryCallable<GetIamPolicyLicenseRequest, Policy> getIamPolicyCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   License licenseResource = License.newBuilder().build();
@@ -467,8 +509,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   InsertLicenseRequest request =
    *       InsertLicenseRequest.newBuilder()
@@ -497,8 +542,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertLicenseRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   InsertLicenseRequest request =
    *       InsertLicenseRequest.newBuilder()
@@ -526,8 +574,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertLicenseRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   InsertLicenseRequest request =
    *       InsertLicenseRequest.newBuilder()
@@ -557,8 +608,11 @@ public final UnaryCallable<InsertLicenseRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   for (License element : licensesClient.list(project).iterateAll()) {
@@ -587,8 +641,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   ListLicensesRequest request =
    *       ListLicensesRequest.newBuilder()
@@ -624,8 +681,11 @@ public final ListPagedResponse list(ListLicensesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   ListLicensesRequest request =
    *       ListLicensesRequest.newBuilder()
@@ -660,8 +720,11 @@ public final UnaryCallable<ListLicensesRequest, ListPagedResponse> listPagedCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   ListLicensesRequest request =
    *       ListLicensesRequest.newBuilder()
@@ -700,8 +763,11 @@ public final UnaryCallable<ListLicensesRequest, LicensesListResponse> listCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -737,8 +803,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   SetIamPolicyLicenseRequest request =
    *       SetIamPolicyLicenseRequest.newBuilder()
@@ -766,8 +835,11 @@ public final Policy setIamPolicy(SetIamPolicyLicenseRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   SetIamPolicyLicenseRequest request =
    *       SetIamPolicyLicenseRequest.newBuilder()
@@ -794,8 +866,11 @@ public final UnaryCallable<SetIamPolicyLicenseRequest, Policy> setIamPolicyCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -831,8 +906,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   TestIamPermissionsLicenseRequest request =
    *       TestIamPermissionsLicenseRequest.newBuilder()
@@ -861,8 +939,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (LicensesClient licensesClient = LicensesClient.create()) {
    *   TestIamPermissionsLicenseRequest request =
    *       TestIamPermissionsLicenseRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesSettings.java
index 41749ebdf..5febcaf28 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/LicensesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicensesSettings.Builder licensesSettingsBuilder = LicensesSettings.newBuilder();
  * licensesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         licensesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         licensesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * LicensesSettings licensesSettings = licensesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesClient.java
index bf73d99e8..86c54d1ba 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
  *   String project = "project-309310695";
  *   String machineImage = "machineImage1817774420";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineImagesSettings machineImagesSettings =
  *     MachineImagesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineImagesSettings machineImagesSettings =
  *     MachineImagesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * MachineImagesClient machineImagesClient = MachineImagesClient.create(machineImagesSettings);
@@ -160,8 +169,11 @@ public MachineImagesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   String machineImage = "machineImage1817774420";
@@ -191,8 +203,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   DeleteMachineImageRequest request =
    *       DeleteMachineImageRequest.newBuilder()
@@ -222,8 +237,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   DeleteMachineImageRequest request =
    *       DeleteMachineImageRequest.newBuilder()
@@ -251,8 +269,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   DeleteMachineImageRequest request =
    *       DeleteMachineImageRequest.newBuilder()
@@ -278,8 +299,11 @@ public final UnaryCallable<DeleteMachineImageRequest, Operation> deleteCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   String machineImage = "machineImage1817774420";
@@ -308,8 +332,11 @@ public final MachineImage get(String project, String machineImage) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   GetMachineImageRequest request =
    *       GetMachineImageRequest.newBuilder()
@@ -335,8 +362,11 @@ public final MachineImage get(GetMachineImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   GetMachineImageRequest request =
    *       GetMachineImageRequest.newBuilder()
@@ -361,8 +391,11 @@ public final UnaryCallable<GetMachineImageRequest, MachineImage> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -391,8 +424,11 @@ public final Policy getIamPolicy(String project, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   GetIamPolicyMachineImageRequest request =
    *       GetIamPolicyMachineImageRequest.newBuilder()
@@ -419,8 +455,11 @@ public final Policy getIamPolicy(GetIamPolicyMachineImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   GetIamPolicyMachineImageRequest request =
    *       GetIamPolicyMachineImageRequest.newBuilder()
@@ -448,8 +487,11 @@ public final UnaryCallable<GetIamPolicyMachineImageRequest, Policy> getIamPolicy
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   MachineImage machineImageResource = MachineImage.newBuilder().build();
@@ -481,8 +523,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   InsertMachineImageRequest request =
    *       InsertMachineImageRequest.newBuilder()
@@ -515,8 +560,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   InsertMachineImageRequest request =
    *       InsertMachineImageRequest.newBuilder()
@@ -547,8 +595,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   InsertMachineImageRequest request =
    *       InsertMachineImageRequest.newBuilder()
@@ -574,8 +625,11 @@ public final UnaryCallable<InsertMachineImageRequest, Operation> insertCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   for (MachineImage element : machineImagesClient.list(project).iterateAll()) {
@@ -600,8 +654,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   ListMachineImagesRequest request =
    *       ListMachineImagesRequest.newBuilder()
@@ -632,8 +689,11 @@ public final ListPagedResponse list(ListMachineImagesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   ListMachineImagesRequest request =
    *       ListMachineImagesRequest.newBuilder()
@@ -663,8 +723,11 @@ public final UnaryCallable<ListMachineImagesRequest, ListPagedResponse> listPage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   ListMachineImagesRequest request =
    *       ListMachineImagesRequest.newBuilder()
@@ -701,8 +764,11 @@ public final UnaryCallable<ListMachineImagesRequest, MachineImageList> listCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -736,8 +802,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   SetIamPolicyMachineImageRequest request =
    *       SetIamPolicyMachineImageRequest.newBuilder()
@@ -763,8 +832,11 @@ public final Policy setIamPolicy(SetIamPolicyMachineImageRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   SetIamPolicyMachineImageRequest request =
    *       SetIamPolicyMachineImageRequest.newBuilder()
@@ -789,8 +861,11 @@ public final UnaryCallable<SetIamPolicyMachineImageRequest, Policy> setIamPolicy
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -824,8 +899,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   TestIamPermissionsMachineImageRequest request =
    *       TestIamPermissionsMachineImageRequest.newBuilder()
@@ -852,8 +930,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
    *   TestIamPermissionsMachineImageRequest request =
    *       TestIamPermissionsMachineImageRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesSettings.java
index 0d51015fd..9feb253ee 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineImagesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineImagesSettings.Builder machineImagesSettingsBuilder = MachineImagesSettings.newBuilder();
  * machineImagesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         machineImagesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         machineImagesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * MachineImagesSettings machineImagesSettings = machineImagesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesClient.java
index 2dfa55c3a..8ccc87168 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesClient.java
@@ -41,8 +41,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineTypesSettings machineTypesSettings =
  *     MachineTypesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -92,8 +98,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineTypesSettings machineTypesSettings =
  *     MachineTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * MachineTypesClient machineTypesClient = MachineTypesClient.create(machineTypesSettings);
@@ -157,8 +166,11 @@ public MachineTypesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, MachineTypesScopedList> element :
@@ -184,8 +196,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   AggregatedListMachineTypesRequest request =
    *       AggregatedListMachineTypesRequest.newBuilder()
@@ -219,8 +234,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   AggregatedListMachineTypesRequest request =
    *       AggregatedListMachineTypesRequest.newBuilder()
@@ -253,8 +271,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   AggregatedListMachineTypesRequest request =
    *       AggregatedListMachineTypesRequest.newBuilder()
@@ -295,8 +316,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -328,8 +352,11 @@ public final MachineType get(String project, String zone, String machineType) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   GetMachineTypeRequest request =
    *       GetMachineTypeRequest.newBuilder()
@@ -356,8 +383,11 @@ public final MachineType get(GetMachineTypeRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   GetMachineTypeRequest request =
    *       GetMachineTypeRequest.newBuilder()
@@ -382,8 +412,11 @@ public final UnaryCallable<GetMachineTypeRequest, MachineType> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -410,8 +443,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   ListMachineTypesRequest request =
    *       ListMachineTypesRequest.newBuilder()
@@ -443,8 +479,11 @@ public final ListPagedResponse list(ListMachineTypesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   ListMachineTypesRequest request =
    *       ListMachineTypesRequest.newBuilder()
@@ -475,8 +514,11 @@ public final UnaryCallable<ListMachineTypesRequest, ListPagedResponse> listPaged
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
    *   ListMachineTypesRequest request =
    *       ListMachineTypesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesSettings.java
index 723bea2ce..a6e661a52 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/MachineTypesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineTypesSettings.Builder machineTypesSettingsBuilder = MachineTypesSettings.newBuilder();
  * machineTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         machineTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         machineTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * MachineTypesSettings machineTypesSettings = machineTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesClient.java
index 17d2666c6..d03b70940 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
  *     NetworkEdgeSecurityServicesClient.create()) {
  *   String project = "project-309310695";
@@ -86,8 +89,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEdgeSecurityServicesSettings networkEdgeSecurityServicesSettings =
  *     NetworkEdgeSecurityServicesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -99,8 +105,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEdgeSecurityServicesSettings networkEdgeSecurityServicesSettings =
  *     NetworkEdgeSecurityServicesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
@@ -170,8 +179,11 @@ public NetworkEdgeSecurityServicesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   String project = "project-309310695";
@@ -199,8 +211,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   AggregatedListNetworkEdgeSecurityServicesRequest request =
@@ -236,8 +251,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   AggregatedListNetworkEdgeSecurityServicesRequest request =
@@ -274,8 +292,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   AggregatedListNetworkEdgeSecurityServicesRequest request =
@@ -319,8 +340,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   String project = "project-309310695";
@@ -356,8 +380,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   DeleteNetworkEdgeSecurityServiceRequest request =
@@ -388,8 +415,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   DeleteNetworkEdgeSecurityServiceRequest request =
@@ -418,8 +448,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   DeleteNetworkEdgeSecurityServiceRequest request =
@@ -447,8 +480,11 @@ public final UnaryCallable<DeleteNetworkEdgeSecurityServiceRequest, Operation> d
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   String project = "project-309310695";
@@ -482,8 +518,11 @@ public final NetworkEdgeSecurityService get(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   GetNetworkEdgeSecurityServiceRequest request =
@@ -510,8 +549,11 @@ public final NetworkEdgeSecurityService get(GetNetworkEdgeSecurityServiceRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   GetNetworkEdgeSecurityServiceRequest request =
@@ -539,8 +581,11 @@ public final NetworkEdgeSecurityService get(GetNetworkEdgeSecurityServiceRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   String project = "project-309310695";
@@ -579,8 +624,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   InsertNetworkEdgeSecurityServiceRequest request =
@@ -613,8 +661,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   InsertNetworkEdgeSecurityServiceRequest request =
@@ -645,8 +696,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   InsertNetworkEdgeSecurityServiceRequest request =
@@ -676,8 +730,11 @@ public final UnaryCallable<InsertNetworkEdgeSecurityServiceRequest, Operation> i
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   String project = "project-309310695";
@@ -721,8 +778,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   PatchNetworkEdgeSecurityServiceRequest request =
@@ -757,8 +817,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   PatchNetworkEdgeSecurityServiceRequest request =
@@ -791,8 +854,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
    *     NetworkEdgeSecurityServicesClient.create()) {
    *   PatchNetworkEdgeSecurityServiceRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesSettings.java
index 649c0aacc..213543fe1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEdgeSecurityServicesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEdgeSecurityServicesSettings.Builder networkEdgeSecurityServicesSettingsBuilder =
  *     NetworkEdgeSecurityServicesSettings.newBuilder();
  * networkEdgeSecurityServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networkEdgeSecurityServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networkEdgeSecurityServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworkEdgeSecurityServicesSettings networkEdgeSecurityServicesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsClient.java
index cf3fbf3be..4a1a1b6d2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
  *     NetworkEndpointGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -86,8 +89,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEndpointGroupsSettings networkEndpointGroupsSettings =
  *     NetworkEndpointGroupsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -99,8 +105,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEndpointGroupsSettings networkEndpointGroupsSettings =
  *     NetworkEndpointGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NetworkEndpointGroupsClient networkEndpointGroupsClient =
@@ -166,8 +175,11 @@ public NetworkEndpointGroupsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -194,8 +206,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   AggregatedListNetworkEndpointGroupsRequest request =
@@ -230,8 +245,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   AggregatedListNetworkEndpointGroupsRequest request =
@@ -266,8 +284,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   AggregatedListNetworkEndpointGroupsRequest request =
@@ -309,8 +330,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -362,8 +386,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   AttachNetworkEndpointsNetworkEndpointGroupRequest request =
@@ -396,8 +423,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   AttachNetworkEndpointsNetworkEndpointGroupRequest request =
@@ -429,8 +459,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   AttachNetworkEndpointsNetworkEndpointGroupRequest request =
@@ -463,8 +496,11 @@ public final OperationFuture<Operation, Operation> attachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -502,8 +538,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   DeleteNetworkEndpointGroupRequest request =
@@ -536,8 +575,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   DeleteNetworkEndpointGroupRequest request =
@@ -568,8 +610,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   DeleteNetworkEndpointGroupRequest request =
@@ -597,8 +642,11 @@ public final UnaryCallable<DeleteNetworkEndpointGroupRequest, Operation> deleteC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -650,8 +698,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   DetachNetworkEndpointsNetworkEndpointGroupRequest request =
@@ -684,8 +735,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   DetachNetworkEndpointsNetworkEndpointGroupRequest request =
@@ -717,8 +771,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   DetachNetworkEndpointsNetworkEndpointGroupRequest request =
@@ -750,8 +807,11 @@ public final OperationFuture<Operation, Operation> detachNetworkEndpointsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -787,8 +847,11 @@ public final NetworkEndpointGroup get(String project, String zone, String networ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   GetNetworkEndpointGroupRequest request =
@@ -816,8 +879,11 @@ public final NetworkEndpointGroup get(GetNetworkEndpointGroupRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   GetNetworkEndpointGroupRequest request =
@@ -845,8 +911,11 @@ public final UnaryCallable<GetNetworkEndpointGroupRequest, NetworkEndpointGroup>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -884,8 +953,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   InsertNetworkEndpointGroupRequest request =
@@ -917,8 +989,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   InsertNetworkEndpointGroupRequest request =
@@ -948,8 +1023,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   InsertNetworkEndpointGroupRequest request =
@@ -978,8 +1056,11 @@ public final UnaryCallable<InsertNetworkEndpointGroupRequest, Operation> insertC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -1010,8 +1091,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointGroupsRequest request =
@@ -1045,8 +1129,11 @@ public final ListPagedResponse list(ListNetworkEndpointGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointGroupsRequest request =
@@ -1081,8 +1168,11 @@ public final ListPagedResponse list(ListNetworkEndpointGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointGroupsRequest request =
@@ -1123,8 +1213,11 @@ public final ListPagedResponse list(ListNetworkEndpointGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -1176,8 +1269,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointsNetworkEndpointGroupsRequest request =
@@ -1215,8 +1311,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointsNetworkEndpointGroupsRequest request =
@@ -1254,8 +1353,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   ListNetworkEndpointsNetworkEndpointGroupsRequest request =
@@ -1301,8 +1403,11 @@ public final ListNetworkEndpointsPagedResponse listNetworkEndpoints(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -1344,8 +1449,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   TestIamPermissionsNetworkEndpointGroupRequest request =
@@ -1374,8 +1482,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
    *     NetworkEndpointGroupsClient.create()) {
    *   TestIamPermissionsNetworkEndpointGroupRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsSettings.java
index 7a8d4f809..356f20c77 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkEndpointGroupsSettings.java
@@ -55,17 +55,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEndpointGroupsSettings.Builder networkEndpointGroupsSettingsBuilder =
  *     NetworkEndpointGroupsSettings.newBuilder();
  * networkEndpointGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networkEndpointGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networkEndpointGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworkEndpointGroupsSettings networkEndpointGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesClient.java
index 223655065..813e8fc09 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
  *     NetworkFirewallPoliciesClient.create()) {
  *   String project = "project-309310695";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkFirewallPoliciesSettings networkFirewallPoliciesSettings =
  *     NetworkFirewallPoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkFirewallPoliciesSettings networkFirewallPoliciesSettings =
  *     NetworkFirewallPoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
@@ -164,8 +173,11 @@ public NetworkFirewallPoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -204,8 +216,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   AddAssociationNetworkFirewallPolicyRequest request =
@@ -237,8 +252,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   AddAssociationNetworkFirewallPolicyRequest request =
@@ -268,8 +286,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   AddAssociationNetworkFirewallPolicyRequest request =
@@ -299,8 +320,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -336,8 +360,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   AddRuleNetworkFirewallPolicyRequest request =
@@ -370,8 +397,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   AddRuleNetworkFirewallPolicyRequest request =
@@ -402,8 +432,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   AddRuleNetworkFirewallPolicyRequest request =
@@ -433,8 +466,11 @@ public final UnaryCallable<AddRuleNetworkFirewallPolicyRequest, Operation> addRu
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -465,8 +501,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   CloneRulesNetworkFirewallPolicyRequest request =
@@ -497,8 +536,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   CloneRulesNetworkFirewallPolicyRequest request =
@@ -527,8 +569,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   CloneRulesNetworkFirewallPolicyRequest request =
@@ -557,8 +602,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -588,8 +636,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   DeleteNetworkFirewallPolicyRequest request =
@@ -619,8 +670,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   DeleteNetworkFirewallPolicyRequest request =
@@ -648,8 +702,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   DeleteNetworkFirewallPolicyRequest request =
@@ -676,8 +733,11 @@ public final UnaryCallable<DeleteNetworkFirewallPolicyRequest, Operation> delete
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -706,8 +766,11 @@ public final FirewallPolicy get(String project, String firewallPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetNetworkFirewallPolicyRequest request =
@@ -733,8 +796,11 @@ public final FirewallPolicy get(GetNetworkFirewallPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetNetworkFirewallPolicyRequest request =
@@ -760,8 +826,11 @@ public final UnaryCallable<GetNetworkFirewallPolicyRequest, FirewallPolicy> getC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -791,8 +860,11 @@ public final FirewallPolicyAssociation getAssociation(String project, String fir
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetAssociationNetworkFirewallPolicyRequest request =
@@ -820,8 +892,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetAssociationNetworkFirewallPolicyRequest request =
@@ -850,8 +925,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -881,8 +959,11 @@ public final Policy getIamPolicy(String project, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetIamPolicyNetworkFirewallPolicyRequest request =
@@ -910,8 +991,11 @@ public final Policy getIamPolicy(GetIamPolicyNetworkFirewallPolicyRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetIamPolicyNetworkFirewallPolicyRequest request =
@@ -939,8 +1023,11 @@ public final Policy getIamPolicy(GetIamPolicyNetworkFirewallPolicyRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -969,8 +1056,11 @@ public final FirewallPolicyRule getRule(String project, String firewallPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetRuleNetworkFirewallPolicyRequest request =
@@ -997,8 +1087,11 @@ public final FirewallPolicyRule getRule(GetRuleNetworkFirewallPolicyRequest requ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   GetRuleNetworkFirewallPolicyRequest request =
@@ -1026,8 +1119,11 @@ public final FirewallPolicyRule getRule(GetRuleNetworkFirewallPolicyRequest requ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1058,8 +1154,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   InsertNetworkFirewallPolicyRequest request =
@@ -1089,8 +1188,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   InsertNetworkFirewallPolicyRequest request =
@@ -1118,8 +1220,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   InsertNetworkFirewallPolicyRequest request =
@@ -1146,8 +1251,11 @@ public final UnaryCallable<InsertNetworkFirewallPolicyRequest, Operation> insert
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1173,8 +1281,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   ListNetworkFirewallPoliciesRequest request =
@@ -1206,8 +1317,11 @@ public final ListPagedResponse list(ListNetworkFirewallPoliciesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   ListNetworkFirewallPoliciesRequest request =
@@ -1240,8 +1354,11 @@ public final ListPagedResponse list(ListNetworkFirewallPoliciesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   ListNetworkFirewallPoliciesRequest request =
@@ -1280,8 +1397,11 @@ public final ListPagedResponse list(ListNetworkFirewallPoliciesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1317,8 +1437,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   PatchNetworkFirewallPolicyRequest request =
@@ -1349,8 +1472,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   PatchNetworkFirewallPolicyRequest request =
@@ -1379,8 +1505,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   PatchNetworkFirewallPolicyRequest request =
@@ -1408,8 +1537,11 @@ public final UnaryCallable<PatchNetworkFirewallPolicyRequest, Operation> patchCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1445,8 +1577,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   PatchRuleNetworkFirewallPolicyRequest request =
@@ -1478,8 +1613,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   PatchRuleNetworkFirewallPolicyRequest request =
@@ -1509,8 +1647,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   PatchRuleNetworkFirewallPolicyRequest request =
@@ -1539,8 +1680,11 @@ public final UnaryCallable<PatchRuleNetworkFirewallPolicyRequest, Operation> pat
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1571,8 +1715,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   RemoveAssociationNetworkFirewallPolicyRequest request =
@@ -1603,8 +1750,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   RemoveAssociationNetworkFirewallPolicyRequest request =
@@ -1634,8 +1784,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   RemoveAssociationNetworkFirewallPolicyRequest request =
@@ -1664,8 +1817,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1696,8 +1852,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   RemoveRuleNetworkFirewallPolicyRequest request =
@@ -1728,8 +1887,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   RemoveRuleNetworkFirewallPolicyRequest request =
@@ -1758,8 +1920,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   RemoveRuleNetworkFirewallPolicyRequest request =
@@ -1788,8 +1953,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1825,8 +1993,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   SetIamPolicyNetworkFirewallPolicyRequest request =
@@ -1853,8 +2024,11 @@ public final Policy setIamPolicy(SetIamPolicyNetworkFirewallPolicyRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   SetIamPolicyNetworkFirewallPolicyRequest request =
@@ -1882,8 +2056,11 @@ public final Policy setIamPolicy(SetIamPolicyNetworkFirewallPolicyRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1919,8 +2096,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   TestIamPermissionsNetworkFirewallPolicyRequest request =
@@ -1948,8 +2128,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
    *     NetworkFirewallPoliciesClient.create()) {
    *   TestIamPermissionsNetworkFirewallPolicyRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesSettings.java
index 165542403..6e347383a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworkFirewallPoliciesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkFirewallPoliciesSettings.Builder networkFirewallPoliciesSettingsBuilder =
  *     NetworkFirewallPoliciesSettings.newBuilder();
  * networkFirewallPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networkFirewallPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networkFirewallPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworkFirewallPoliciesSettings networkFirewallPoliciesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksClient.java
index ece2f2b24..f05be4f9a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworksClient networksClient = NetworksClient.create()) {
  *   String project = "project-309310695";
  *   String network = "network1843485230";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworksSettings networksSettings =
  *     NetworksSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworksSettings networksSettings =
  *     NetworksSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NetworksClient networksClient = NetworksClient.create(networksSettings);
@@ -157,8 +166,11 @@ public NetworksStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -192,8 +204,11 @@ public final OperationFuture<Operation, Operation> addPeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   AddPeeringNetworkRequest request =
    *       AddPeeringNetworkRequest.newBuilder()
@@ -223,8 +238,11 @@ public final OperationFuture<Operation, Operation> addPeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   AddPeeringNetworkRequest request =
    *       AddPeeringNetworkRequest.newBuilder()
@@ -252,8 +270,11 @@ public final OperationFuture<Operation, Operation> addPeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   AddPeeringNetworkRequest request =
    *       AddPeeringNetworkRequest.newBuilder()
@@ -279,8 +300,11 @@ public final UnaryCallable<AddPeeringNetworkRequest, Operation> addPeeringCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -305,8 +329,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   DeleteNetworkRequest request =
    *       DeleteNetworkRequest.newBuilder()
@@ -334,8 +361,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteNetworkRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   DeleteNetworkRequest request =
    *       DeleteNetworkRequest.newBuilder()
@@ -362,8 +392,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteNetworkRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   DeleteNetworkRequest request =
    *       DeleteNetworkRequest.newBuilder()
@@ -388,8 +421,11 @@ public final UnaryCallable<DeleteNetworkRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -414,8 +450,11 @@ public final Network get(String project, String network) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   GetNetworkRequest request =
    *       GetNetworkRequest.newBuilder()
@@ -440,8 +479,11 @@ public final Network get(GetNetworkRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   GetNetworkRequest request =
    *       GetNetworkRequest.newBuilder()
@@ -465,8 +507,11 @@ public final UnaryCallable<GetNetworkRequest, Network> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -496,8 +541,11 @@ public final NetworksGetEffectiveFirewallsResponse getEffectiveFirewalls(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   GetEffectiveFirewallsNetworkRequest request =
    *       GetEffectiveFirewallsNetworkRequest.newBuilder()
@@ -524,8 +572,11 @@ public final NetworksGetEffectiveFirewallsResponse getEffectiveFirewalls(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   GetEffectiveFirewallsNetworkRequest request =
    *       GetEffectiveFirewallsNetworkRequest.newBuilder()
@@ -552,8 +603,11 @@ public final NetworksGetEffectiveFirewallsResponse getEffectiveFirewalls(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   Network networkResource = Network.newBuilder().build();
@@ -582,8 +636,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   InsertNetworkRequest request =
    *       InsertNetworkRequest.newBuilder()
@@ -611,8 +668,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertNetworkRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   InsertNetworkRequest request =
    *       InsertNetworkRequest.newBuilder()
@@ -639,8 +699,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertNetworkRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   InsertNetworkRequest request =
    *       InsertNetworkRequest.newBuilder()
@@ -665,8 +728,11 @@ public final UnaryCallable<InsertNetworkRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   for (Network element : networksClient.list(project).iterateAll()) {
@@ -690,8 +756,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   ListNetworksRequest request =
    *       ListNetworksRequest.newBuilder()
@@ -722,8 +791,11 @@ public final ListPagedResponse list(ListNetworksRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   ListNetworksRequest request =
    *       ListNetworksRequest.newBuilder()
@@ -753,8 +825,11 @@ public final UnaryCallable<ListNetworksRequest, ListPagedResponse> listPagedCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   ListNetworksRequest request =
    *       ListNetworksRequest.newBuilder()
@@ -791,8 +866,11 @@ public final UnaryCallable<ListNetworksRequest, NetworkList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -823,8 +901,11 @@ public final ListPeeringRoutesPagedResponse listPeeringRoutes(String project, St
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   ListPeeringRoutesNetworksRequest request =
    *       ListPeeringRoutesNetworksRequest.newBuilder()
@@ -860,8 +941,11 @@ public final ListPeeringRoutesPagedResponse listPeeringRoutes(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   ListPeeringRoutesNetworksRequest request =
    *       ListPeeringRoutesNetworksRequest.newBuilder()
@@ -897,8 +981,11 @@ public final ListPeeringRoutesPagedResponse listPeeringRoutes(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   ListPeeringRoutesNetworksRequest request =
    *       ListPeeringRoutesNetworksRequest.newBuilder()
@@ -942,8 +1029,11 @@ public final ListPeeringRoutesPagedResponse listPeeringRoutes(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -976,8 +1066,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   PatchNetworkRequest request =
    *       PatchNetworkRequest.newBuilder()
@@ -1007,8 +1100,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchNetworkReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   PatchNetworkRequest request =
    *       PatchNetworkRequest.newBuilder()
@@ -1037,8 +1133,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchNetworkReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   PatchNetworkRequest request =
    *       PatchNetworkRequest.newBuilder()
@@ -1064,8 +1163,11 @@ public final UnaryCallable<PatchNetworkRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -1103,8 +1205,11 @@ public final OperationFuture<Operation, Operation> removePeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   RemovePeeringNetworkRequest request =
    *       RemovePeeringNetworkRequest.newBuilder()
@@ -1135,8 +1240,11 @@ public final OperationFuture<Operation, Operation> removePeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   RemovePeeringNetworkRequest request =
    *       RemovePeeringNetworkRequest.newBuilder()
@@ -1165,8 +1273,11 @@ public final OperationFuture<Operation, Operation> removePeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   RemovePeeringNetworkRequest request =
    *       RemovePeeringNetworkRequest.newBuilder()
@@ -1193,8 +1304,11 @@ public final UnaryCallable<RemovePeeringNetworkRequest, Operation> removePeering
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -1223,8 +1337,11 @@ public final OperationFuture<Operation, Operation> switchToCustomModeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   SwitchToCustomModeNetworkRequest request =
    *       SwitchToCustomModeNetworkRequest.newBuilder()
@@ -1253,8 +1370,11 @@ public final OperationFuture<Operation, Operation> switchToCustomModeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   SwitchToCustomModeNetworkRequest request =
    *       SwitchToCustomModeNetworkRequest.newBuilder()
@@ -1281,8 +1401,11 @@ public final OperationFuture<Operation, Operation> switchToCustomModeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   SwitchToCustomModeNetworkRequest request =
    *       SwitchToCustomModeNetworkRequest.newBuilder()
@@ -1310,8 +1433,11 @@ public final OperationFuture<Operation, Operation> switchToCustomModeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   String project = "project-309310695";
    *   String network = "network1843485230";
@@ -1351,8 +1477,11 @@ public final OperationFuture<Operation, Operation> updatePeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   UpdatePeeringNetworkRequest request =
    *       UpdatePeeringNetworkRequest.newBuilder()
@@ -1385,8 +1514,11 @@ public final OperationFuture<Operation, Operation> updatePeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   UpdatePeeringNetworkRequest request =
    *       UpdatePeeringNetworkRequest.newBuilder()
@@ -1417,8 +1549,11 @@ public final OperationFuture<Operation, Operation> updatePeeringAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NetworksClient networksClient = NetworksClient.create()) {
    *   UpdatePeeringNetworkRequest request =
    *       UpdatePeeringNetworkRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksSettings.java
index bb8f7da31..4a7bfbae9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NetworksSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworksSettings.Builder networksSettingsBuilder = NetworksSettings.newBuilder();
  * networksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworksSettings networksSettings = networksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsClient.java
index cf77ee34d..b8d60aa04 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeGroupsSettings nodeGroupsSettings =
  *     NodeGroupsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeGroupsSettings nodeGroupsSettings =
  *     NodeGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create(nodeGroupsSettings);
@@ -159,8 +168,11 @@ public NodeGroupsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -202,8 +214,11 @@ public final OperationFuture<Operation, Operation> addNodesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   AddNodesNodeGroupRequest request =
    *       AddNodesNodeGroupRequest.newBuilder()
@@ -234,8 +249,11 @@ public final OperationFuture<Operation, Operation> addNodesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   AddNodesNodeGroupRequest request =
    *       AddNodesNodeGroupRequest.newBuilder()
@@ -264,8 +282,11 @@ public final OperationFuture<Operation, Operation> addNodesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   AddNodesNodeGroupRequest request =
    *       AddNodesNodeGroupRequest.newBuilder()
@@ -293,8 +314,11 @@ public final UnaryCallable<AddNodesNodeGroupRequest, Operation> addNodesCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, NodeGroupsScopedList> element :
@@ -321,8 +345,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   AggregatedListNodeGroupsRequest request =
    *       AggregatedListNodeGroupsRequest.newBuilder()
@@ -356,8 +383,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListNodeGroups
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   AggregatedListNodeGroupsRequest request =
    *       AggregatedListNodeGroupsRequest.newBuilder()
@@ -391,8 +421,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListNodeGroups
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   AggregatedListNodeGroupsRequest request =
    *       AggregatedListNodeGroupsRequest.newBuilder()
@@ -431,8 +464,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListNodeGroups
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -464,8 +500,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   DeleteNodeGroupRequest request =
    *       DeleteNodeGroupRequest.newBuilder()
@@ -494,8 +533,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteNodeGroupRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   DeleteNodeGroupRequest request =
    *       DeleteNodeGroupRequest.newBuilder()
@@ -523,8 +565,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteNodeGroupRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   DeleteNodeGroupRequest request =
    *       DeleteNodeGroupRequest.newBuilder()
@@ -550,8 +595,11 @@ public final UnaryCallable<DeleteNodeGroupRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -593,8 +641,11 @@ public final OperationFuture<Operation, Operation> deleteNodesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   DeleteNodesNodeGroupRequest request =
    *       DeleteNodesNodeGroupRequest.newBuilder()
@@ -626,8 +677,11 @@ public final OperationFuture<Operation, Operation> deleteNodesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   DeleteNodesNodeGroupRequest request =
    *       DeleteNodesNodeGroupRequest.newBuilder()
@@ -657,8 +711,11 @@ public final OperationFuture<Operation, Operation> deleteNodesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   DeleteNodesNodeGroupRequest request =
    *       DeleteNodesNodeGroupRequest.newBuilder()
@@ -687,8 +744,11 @@ public final UnaryCallable<DeleteNodesNodeGroupRequest, Operation> deleteNodesCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -720,8 +780,11 @@ public final NodeGroup get(String project, String zone, String nodeGroup) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   GetNodeGroupRequest request =
    *       GetNodeGroupRequest.newBuilder()
@@ -748,8 +811,11 @@ public final NodeGroup get(GetNodeGroupRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   GetNodeGroupRequest request =
    *       GetNodeGroupRequest.newBuilder()
@@ -775,8 +841,11 @@ public final UnaryCallable<GetNodeGroupRequest, NodeGroup> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -808,8 +877,11 @@ public final Policy getIamPolicy(String project, String zone, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   GetIamPolicyNodeGroupRequest request =
    *       GetIamPolicyNodeGroupRequest.newBuilder()
@@ -837,8 +909,11 @@ public final Policy getIamPolicy(GetIamPolicyNodeGroupRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   GetIamPolicyNodeGroupRequest request =
    *       GetIamPolicyNodeGroupRequest.newBuilder()
@@ -864,8 +939,11 @@ public final UnaryCallable<GetIamPolicyNodeGroupRequest, Policy> getIamPolicyCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -901,8 +979,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   InsertNodeGroupRequest request =
    *       InsertNodeGroupRequest.newBuilder()
@@ -932,8 +1013,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertNodeGroupRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   InsertNodeGroupRequest request =
    *       InsertNodeGroupRequest.newBuilder()
@@ -962,8 +1046,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertNodeGroupRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   InsertNodeGroupRequest request =
    *       InsertNodeGroupRequest.newBuilder()
@@ -991,8 +1078,11 @@ public final UnaryCallable<InsertNodeGroupRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1020,8 +1110,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   ListNodeGroupsRequest request =
    *       ListNodeGroupsRequest.newBuilder()
@@ -1054,8 +1147,11 @@ public final ListPagedResponse list(ListNodeGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   ListNodeGroupsRequest request =
    *       ListNodeGroupsRequest.newBuilder()
@@ -1087,8 +1183,11 @@ public final UnaryCallable<ListNodeGroupsRequest, ListPagedResponse> listPagedCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   ListNodeGroupsRequest request =
    *       ListNodeGroupsRequest.newBuilder()
@@ -1126,8 +1225,11 @@ public final UnaryCallable<ListNodeGroupsRequest, NodeGroupList> listCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1161,8 +1263,11 @@ public final ListNodesPagedResponse listNodes(String project, String zone, Strin
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   ListNodesNodeGroupsRequest request =
    *       ListNodesNodeGroupsRequest.newBuilder()
@@ -1195,8 +1300,11 @@ public final ListNodesPagedResponse listNodes(ListNodesNodeGroupsRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   ListNodesNodeGroupsRequest request =
    *       ListNodesNodeGroupsRequest.newBuilder()
@@ -1230,8 +1338,11 @@ public final ListNodesPagedResponse listNodes(ListNodesNodeGroupsRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   ListNodesNodeGroupsRequest request =
    *       ListNodesNodeGroupsRequest.newBuilder()
@@ -1270,8 +1381,11 @@ public final UnaryCallable<ListNodesNodeGroupsRequest, NodeGroupsListNodes> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1307,8 +1421,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   PatchNodeGroupRequest request =
    *       PatchNodeGroupRequest.newBuilder()
@@ -1338,8 +1455,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchNodeGroupRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   PatchNodeGroupRequest request =
    *       PatchNodeGroupRequest.newBuilder()
@@ -1368,8 +1488,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchNodeGroupRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   PatchNodeGroupRequest request =
    *       PatchNodeGroupRequest.newBuilder()
@@ -1396,8 +1519,11 @@ public final UnaryCallable<PatchNodeGroupRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1436,8 +1562,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   SetIamPolicyNodeGroupRequest request =
    *       SetIamPolicyNodeGroupRequest.newBuilder()
@@ -1464,8 +1593,11 @@ public final Policy setIamPolicy(SetIamPolicyNodeGroupRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   SetIamPolicyNodeGroupRequest request =
    *       SetIamPolicyNodeGroupRequest.newBuilder()
@@ -1491,8 +1623,11 @@ public final UnaryCallable<SetIamPolicyNodeGroupRequest, Policy> setIamPolicyCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1535,8 +1670,11 @@ public final OperationFuture<Operation, Operation> setNodeTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   SetNodeTemplateNodeGroupRequest request =
    *       SetNodeTemplateNodeGroupRequest.newBuilder()
@@ -1568,8 +1706,11 @@ public final OperationFuture<Operation, Operation> setNodeTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   SetNodeTemplateNodeGroupRequest request =
    *       SetNodeTemplateNodeGroupRequest.newBuilder()
@@ -1599,8 +1740,11 @@ public final OperationFuture<Operation, Operation> setNodeTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   SetNodeTemplateNodeGroupRequest request =
    *       SetNodeTemplateNodeGroupRequest.newBuilder()
@@ -1628,8 +1772,11 @@ public final UnaryCallable<SetNodeTemplateNodeGroupRequest, Operation> setNodeTe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1670,8 +1817,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   TestIamPermissionsNodeGroupRequest request =
    *       TestIamPermissionsNodeGroupRequest.newBuilder()
@@ -1699,8 +1849,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
    *   TestIamPermissionsNodeGroupRequest request =
    *       TestIamPermissionsNodeGroupRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsSettings.java
index a82f84891..3e965aefe 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeGroupsSettings.java
@@ -55,16 +55,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeGroupsSettings.Builder nodeGroupsSettingsBuilder = NodeGroupsSettings.newBuilder();
  * nodeGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         nodeGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         nodeGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NodeGroupsSettings nodeGroupsSettings = nodeGroupsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesClient.java
index d4b37d9b2..dc213743a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTemplatesSettings nodeTemplatesSettings =
  *     NodeTemplatesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTemplatesSettings nodeTemplatesSettings =
  *     NodeTemplatesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create(nodeTemplatesSettings);
@@ -161,8 +170,11 @@ public NodeTemplatesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, NodeTemplatesScopedList> element :
@@ -188,8 +200,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   AggregatedListNodeTemplatesRequest request =
    *       AggregatedListNodeTemplatesRequest.newBuilder()
@@ -223,8 +238,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   AggregatedListNodeTemplatesRequest request =
    *       AggregatedListNodeTemplatesRequest.newBuilder()
@@ -257,8 +275,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   AggregatedListNodeTemplatesRequest request =
    *       AggregatedListNodeTemplatesRequest.newBuilder()
@@ -298,8 +319,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -331,8 +355,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   DeleteNodeTemplateRequest request =
    *       DeleteNodeTemplateRequest.newBuilder()
@@ -362,8 +389,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   DeleteNodeTemplateRequest request =
    *       DeleteNodeTemplateRequest.newBuilder()
@@ -391,8 +421,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   DeleteNodeTemplateRequest request =
    *       DeleteNodeTemplateRequest.newBuilder()
@@ -419,8 +452,11 @@ public final UnaryCallable<DeleteNodeTemplateRequest, Operation> deleteCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -452,8 +488,11 @@ public final NodeTemplate get(String project, String region, String nodeTemplate
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   GetNodeTemplateRequest request =
    *       GetNodeTemplateRequest.newBuilder()
@@ -480,8 +519,11 @@ public final NodeTemplate get(GetNodeTemplateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   GetNodeTemplateRequest request =
    *       GetNodeTemplateRequest.newBuilder()
@@ -507,8 +549,11 @@ public final UnaryCallable<GetNodeTemplateRequest, NodeTemplate> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -540,8 +585,11 @@ public final Policy getIamPolicy(String project, String region, String resource)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   GetIamPolicyNodeTemplateRequest request =
    *       GetIamPolicyNodeTemplateRequest.newBuilder()
@@ -569,8 +617,11 @@ public final Policy getIamPolicy(GetIamPolicyNodeTemplateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   GetIamPolicyNodeTemplateRequest request =
    *       GetIamPolicyNodeTemplateRequest.newBuilder()
@@ -597,8 +648,11 @@ public final UnaryCallable<GetIamPolicyNodeTemplateRequest, Policy> getIamPolicy
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -632,8 +686,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   InsertNodeTemplateRequest request =
    *       InsertNodeTemplateRequest.newBuilder()
@@ -664,8 +721,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   InsertNodeTemplateRequest request =
    *       InsertNodeTemplateRequest.newBuilder()
@@ -694,8 +754,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   InsertNodeTemplateRequest request =
    *       InsertNodeTemplateRequest.newBuilder()
@@ -721,8 +784,11 @@ public final UnaryCallable<InsertNodeTemplateRequest, Operation> insertCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -749,8 +815,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   ListNodeTemplatesRequest request =
    *       ListNodeTemplatesRequest.newBuilder()
@@ -782,8 +851,11 @@ public final ListPagedResponse list(ListNodeTemplatesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   ListNodeTemplatesRequest request =
    *       ListNodeTemplatesRequest.newBuilder()
@@ -814,8 +886,11 @@ public final UnaryCallable<ListNodeTemplatesRequest, ListPagedResponse> listPage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   ListNodeTemplatesRequest request =
    *       ListNodeTemplatesRequest.newBuilder()
@@ -853,8 +928,11 @@ public final UnaryCallable<ListNodeTemplatesRequest, NodeTemplateList> listCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -895,8 +973,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   SetIamPolicyNodeTemplateRequest request =
    *       SetIamPolicyNodeTemplateRequest.newBuilder()
@@ -923,8 +1004,11 @@ public final Policy setIamPolicy(SetIamPolicyNodeTemplateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   SetIamPolicyNodeTemplateRequest request =
    *       SetIamPolicyNodeTemplateRequest.newBuilder()
@@ -950,8 +1034,11 @@ public final UnaryCallable<SetIamPolicyNodeTemplateRequest, Policy> setIamPolicy
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -992,8 +1079,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   TestIamPermissionsNodeTemplateRequest request =
    *       TestIamPermissionsNodeTemplateRequest.newBuilder()
@@ -1021,8 +1111,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
    *   TestIamPermissionsNodeTemplateRequest request =
    *       TestIamPermissionsNodeTemplateRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesSettings.java
index cd32f8394..605dfade2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTemplatesSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTemplatesSettings.Builder nodeTemplatesSettingsBuilder = NodeTemplatesSettings.newBuilder();
  * nodeTemplatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         nodeTemplatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         nodeTemplatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NodeTemplatesSettings nodeTemplatesSettings = nodeTemplatesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesClient.java
index 041ad67a2..1960772ee 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesClient.java
@@ -41,8 +41,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTypesSettings nodeTypesSettings =
  *     NodeTypesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -92,8 +98,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTypesSettings nodeTypesSettings =
  *     NodeTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * NodeTypesClient nodeTypesClient = NodeTypesClient.create(nodeTypesSettings);
@@ -156,8 +165,11 @@ public NodeTypesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, NodeTypesScopedList> element :
@@ -183,8 +195,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   AggregatedListNodeTypesRequest request =
    *       AggregatedListNodeTypesRequest.newBuilder()
@@ -217,8 +232,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListNodeTypesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   AggregatedListNodeTypesRequest request =
    *       AggregatedListNodeTypesRequest.newBuilder()
@@ -251,8 +269,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListNodeTypesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   AggregatedListNodeTypesRequest request =
    *       AggregatedListNodeTypesRequest.newBuilder()
@@ -292,8 +313,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListNodeTypesR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -325,8 +349,11 @@ public final NodeType get(String project, String zone, String nodeType) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   GetNodeTypeRequest request =
    *       GetNodeTypeRequest.newBuilder()
@@ -353,8 +380,11 @@ public final NodeType get(GetNodeTypeRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   GetNodeTypeRequest request =
    *       GetNodeTypeRequest.newBuilder()
@@ -379,8 +409,11 @@ public final UnaryCallable<GetNodeTypeRequest, NodeType> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -407,8 +440,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   ListNodeTypesRequest request =
    *       ListNodeTypesRequest.newBuilder()
@@ -440,8 +476,11 @@ public final ListPagedResponse list(ListNodeTypesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   ListNodeTypesRequest request =
    *       ListNodeTypesRequest.newBuilder()
@@ -472,8 +511,11 @@ public final UnaryCallable<ListNodeTypesRequest, ListPagedResponse> listPagedCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
    *   ListNodeTypesRequest request =
    *       ListNodeTypesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesSettings.java
index 7c459b1d6..832329eae 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/NodeTypesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTypesSettings.Builder nodeTypesSettingsBuilder = NodeTypesSettings.newBuilder();
  * nodeTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         nodeTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         nodeTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NodeTypesSettings nodeTypesSettings = nodeTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsClient.java
index 226d03049..c5fa72f9a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PacketMirroringsSettings packetMirroringsSettings =
  *     PacketMirroringsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PacketMirroringsSettings packetMirroringsSettings =
  *     PacketMirroringsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * PacketMirroringsClient packetMirroringsClient =
@@ -164,8 +173,11 @@ public PacketMirroringsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, PacketMirroringsScopedList> element :
@@ -191,8 +203,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   AggregatedListPacketMirroringsRequest request =
    *       AggregatedListPacketMirroringsRequest.newBuilder()
@@ -226,8 +241,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   AggregatedListPacketMirroringsRequest request =
    *       AggregatedListPacketMirroringsRequest.newBuilder()
@@ -260,8 +278,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   AggregatedListPacketMirroringsRequest request =
    *       AggregatedListPacketMirroringsRequest.newBuilder()
@@ -301,8 +322,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -335,8 +359,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   DeletePacketMirroringRequest request =
    *       DeletePacketMirroringRequest.newBuilder()
@@ -366,8 +393,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   DeletePacketMirroringRequest request =
    *       DeletePacketMirroringRequest.newBuilder()
@@ -395,8 +425,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   DeletePacketMirroringRequest request =
    *       DeletePacketMirroringRequest.newBuilder()
@@ -422,8 +455,11 @@ public final UnaryCallable<DeletePacketMirroringRequest, Operation> deleteCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -454,8 +490,11 @@ public final PacketMirroring get(String project, String region, String packetMir
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   GetPacketMirroringRequest request =
    *       GetPacketMirroringRequest.newBuilder()
@@ -481,8 +520,11 @@ public final PacketMirroring get(GetPacketMirroringRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   GetPacketMirroringRequest request =
    *       GetPacketMirroringRequest.newBuilder()
@@ -508,8 +550,11 @@ public final UnaryCallable<GetPacketMirroringRequest, PacketMirroring> getCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -543,8 +588,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   InsertPacketMirroringRequest request =
    *       InsertPacketMirroringRequest.newBuilder()
@@ -575,8 +623,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   InsertPacketMirroringRequest request =
    *       InsertPacketMirroringRequest.newBuilder()
@@ -605,8 +656,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   InsertPacketMirroringRequest request =
    *       InsertPacketMirroringRequest.newBuilder()
@@ -632,8 +686,11 @@ public final UnaryCallable<InsertPacketMirroringRequest, Operation> insertCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -660,8 +717,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   ListPacketMirroringsRequest request =
    *       ListPacketMirroringsRequest.newBuilder()
@@ -693,8 +753,11 @@ public final ListPagedResponse list(ListPacketMirroringsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   ListPacketMirroringsRequest request =
    *       ListPacketMirroringsRequest.newBuilder()
@@ -726,8 +789,11 @@ public final UnaryCallable<ListPacketMirroringsRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   ListPacketMirroringsRequest request =
    *       ListPacketMirroringsRequest.newBuilder()
@@ -766,8 +832,11 @@ public final UnaryCallable<ListPacketMirroringsRequest, PacketMirroringList> lis
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -809,8 +878,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   PatchPacketMirroringRequest request =
    *       PatchPacketMirroringRequest.newBuilder()
@@ -842,8 +914,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   PatchPacketMirroringRequest request =
    *       PatchPacketMirroringRequest.newBuilder()
@@ -873,8 +948,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   PatchPacketMirroringRequest request =
    *       PatchPacketMirroringRequest.newBuilder()
@@ -901,8 +979,11 @@ public final UnaryCallable<PatchPacketMirroringRequest, Operation> patchCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -943,8 +1024,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   TestIamPermissionsPacketMirroringRequest request =
    *       TestIamPermissionsPacketMirroringRequest.newBuilder()
@@ -972,8 +1056,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
    *   TestIamPermissionsPacketMirroringRequest request =
    *       TestIamPermissionsPacketMirroringRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsSettings.java
index 23613a125..c03931627 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PacketMirroringsSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PacketMirroringsSettings.Builder packetMirroringsSettingsBuilder =
  *     PacketMirroringsSettings.newBuilder();
  * packetMirroringsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         packetMirroringsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         packetMirroringsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * PacketMirroringsSettings packetMirroringsSettings = packetMirroringsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsClient.java
index b8258ca11..f6cc872b5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ProjectsClient projectsClient = ProjectsClient.create()) {
  *   String project = "project-309310695";
  *   Project response = projectsClient.get(project);
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ProjectsSettings projectsSettings =
  *     ProjectsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -92,8 +98,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ProjectsSettings projectsSettings =
  *     ProjectsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ProjectsClient projectsClient = ProjectsClient.create(projectsSettings);
@@ -156,8 +165,11 @@ public ProjectsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   Operation response = projectsClient.disableXpnHostAsync(project).get();
@@ -180,8 +192,11 @@ public final OperationFuture<Operation, Operation> disableXpnHostAsync(String pr
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   DisableXpnHostProjectRequest request =
    *       DisableXpnHostProjectRequest.newBuilder()
@@ -209,8 +224,11 @@ public final OperationFuture<Operation, Operation> disableXpnHostAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   DisableXpnHostProjectRequest request =
    *       DisableXpnHostProjectRequest.newBuilder()
@@ -236,8 +254,11 @@ public final OperationFuture<Operation, Operation> disableXpnHostAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   DisableXpnHostProjectRequest request =
    *       DisableXpnHostProjectRequest.newBuilder()
@@ -261,8 +282,11 @@ public final UnaryCallable<DisableXpnHostProjectRequest, Operation> disableXpnHo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   ProjectsDisableXpnResourceRequest projectsDisableXpnResourceRequestResource =
@@ -295,8 +319,11 @@ public final OperationFuture<Operation, Operation> disableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   DisableXpnResourceProjectRequest request =
    *       DisableXpnResourceProjectRequest.newBuilder()
@@ -326,8 +353,11 @@ public final OperationFuture<Operation, Operation> disableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   DisableXpnResourceProjectRequest request =
    *       DisableXpnResourceProjectRequest.newBuilder()
@@ -355,8 +385,11 @@ public final OperationFuture<Operation, Operation> disableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   DisableXpnResourceProjectRequest request =
    *       DisableXpnResourceProjectRequest.newBuilder()
@@ -383,8 +416,11 @@ public final OperationFuture<Operation, Operation> disableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   Operation response = projectsClient.enableXpnHostAsync(project).get();
@@ -407,8 +443,11 @@ public final OperationFuture<Operation, Operation> enableXpnHostAsync(String pro
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   EnableXpnHostProjectRequest request =
    *       EnableXpnHostProjectRequest.newBuilder()
@@ -436,8 +475,11 @@ public final OperationFuture<Operation, Operation> enableXpnHostAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   EnableXpnHostProjectRequest request =
    *       EnableXpnHostProjectRequest.newBuilder()
@@ -463,8 +505,11 @@ public final OperationFuture<Operation, Operation> enableXpnHostAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   EnableXpnHostProjectRequest request =
    *       EnableXpnHostProjectRequest.newBuilder()
@@ -489,8 +534,11 @@ public final UnaryCallable<EnableXpnHostProjectRequest, Operation> enableXpnHost
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   ProjectsEnableXpnResourceRequest projectsEnableXpnResourceRequestResource =
@@ -524,8 +572,11 @@ public final OperationFuture<Operation, Operation> enableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   EnableXpnResourceProjectRequest request =
    *       EnableXpnResourceProjectRequest.newBuilder()
@@ -556,8 +607,11 @@ public final OperationFuture<Operation, Operation> enableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   EnableXpnResourceProjectRequest request =
    *       EnableXpnResourceProjectRequest.newBuilder()
@@ -586,8 +640,11 @@ public final OperationFuture<Operation, Operation> enableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   EnableXpnResourceProjectRequest request =
    *       EnableXpnResourceProjectRequest.newBuilder()
@@ -619,8 +676,11 @@ public final OperationFuture<Operation, Operation> enableXpnResourceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   Project response = projectsClient.get(project);
@@ -647,8 +707,11 @@ public final Project get(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetProjectRequest request =
    *       GetProjectRequest.newBuilder().setProject("project-309310695").build();
@@ -675,8 +738,11 @@ public final Project get(GetProjectRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetProjectRequest request =
    *       GetProjectRequest.newBuilder().setProject("project-309310695").build();
@@ -697,8 +763,11 @@ public final UnaryCallable<GetProjectRequest, Project> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   Project response = projectsClient.getXpnHost(project);
@@ -721,8 +790,11 @@ public final Project getXpnHost(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetXpnHostProjectRequest request =
    *       GetXpnHostProjectRequest.newBuilder().setProject("project-309310695").build();
@@ -744,8 +816,11 @@ public final Project getXpnHost(GetXpnHostProjectRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetXpnHostProjectRequest request =
    *       GetXpnHostProjectRequest.newBuilder().setProject("project-309310695").build();
@@ -766,8 +841,11 @@ public final UnaryCallable<GetXpnHostProjectRequest, Project> getXpnHostCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   for (XpnResourceId element : projectsClient.getXpnResources(project).iterateAll()) {
@@ -792,8 +870,11 @@ public final GetXpnResourcesPagedResponse getXpnResources(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetXpnResourcesProjectsRequest request =
    *       GetXpnResourcesProjectsRequest.newBuilder()
@@ -825,8 +906,11 @@ public final GetXpnResourcesPagedResponse getXpnResources(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetXpnResourcesProjectsRequest request =
    *       GetXpnResourcesProjectsRequest.newBuilder()
@@ -858,8 +942,11 @@ public final GetXpnResourcesPagedResponse getXpnResources(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   GetXpnResourcesProjectsRequest request =
    *       GetXpnResourcesProjectsRequest.newBuilder()
@@ -897,8 +984,11 @@ public final GetXpnResourcesPagedResponse getXpnResources(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   ProjectsListXpnHostsRequest projectsListXpnHostsRequestResource =
@@ -931,8 +1021,11 @@ public final ListXpnHostsPagedResponse listXpnHosts(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   ListXpnHostsProjectsRequest request =
    *       ListXpnHostsProjectsRequest.newBuilder()
@@ -965,8 +1058,11 @@ public final ListXpnHostsPagedResponse listXpnHosts(ListXpnHostsProjectsRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   ListXpnHostsProjectsRequest request =
    *       ListXpnHostsProjectsRequest.newBuilder()
@@ -999,8 +1095,11 @@ public final ListXpnHostsPagedResponse listXpnHosts(ListXpnHostsProjectsRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   ListXpnHostsProjectsRequest request =
    *       ListXpnHostsProjectsRequest.newBuilder()
@@ -1039,8 +1138,11 @@ public final UnaryCallable<ListXpnHostsProjectsRequest, XpnHostList> listXpnHost
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   DiskMoveRequest diskMoveRequestResource = DiskMoveRequest.newBuilder().build();
@@ -1069,8 +1171,11 @@ public final OperationFuture<Operation, Operation> moveDiskAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   MoveDiskProjectRequest request =
    *       MoveDiskProjectRequest.newBuilder()
@@ -1098,8 +1203,11 @@ public final OperationFuture<Operation, Operation> moveDiskAsync(MoveDiskProject
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   MoveDiskProjectRequest request =
    *       MoveDiskProjectRequest.newBuilder()
@@ -1126,8 +1234,11 @@ public final OperationFuture<Operation, Operation> moveDiskAsync(MoveDiskProject
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   MoveDiskProjectRequest request =
    *       MoveDiskProjectRequest.newBuilder()
@@ -1155,8 +1266,11 @@ public final UnaryCallable<MoveDiskProjectRequest, Operation> moveDiskCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   InstanceMoveRequest instanceMoveRequestResource = InstanceMoveRequest.newBuilder().build();
@@ -1189,8 +1303,11 @@ public final OperationFuture<Operation, Operation> moveInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   MoveInstanceProjectRequest request =
    *       MoveInstanceProjectRequest.newBuilder()
@@ -1222,8 +1339,11 @@ public final OperationFuture<Operation, Operation> moveInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   MoveInstanceProjectRequest request =
    *       MoveInstanceProjectRequest.newBuilder()
@@ -1253,8 +1373,11 @@ public final OperationFuture<Operation, Operation> moveInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   MoveInstanceProjectRequest request =
    *       MoveInstanceProjectRequest.newBuilder()
@@ -1280,8 +1403,11 @@ public final UnaryCallable<MoveInstanceProjectRequest, Operation> moveInstanceCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   Metadata metadataResource = Metadata.newBuilder().build();
@@ -1312,8 +1438,11 @@ public final OperationFuture<Operation, Operation> setCommonInstanceMetadataAsyn
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetCommonInstanceMetadataProjectRequest request =
    *       SetCommonInstanceMetadataProjectRequest.newBuilder()
@@ -1343,8 +1472,11 @@ public final OperationFuture<Operation, Operation> setCommonInstanceMetadataAsyn
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetCommonInstanceMetadataProjectRequest request =
    *       SetCommonInstanceMetadataProjectRequest.newBuilder()
@@ -1372,8 +1504,11 @@ public final OperationFuture<Operation, Operation> setCommonInstanceMetadataAsyn
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetCommonInstanceMetadataProjectRequest request =
    *       SetCommonInstanceMetadataProjectRequest.newBuilder()
@@ -1401,8 +1536,11 @@ public final OperationFuture<Operation, Operation> setCommonInstanceMetadataAsyn
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   ProjectsSetDefaultNetworkTierRequest projectsSetDefaultNetworkTierRequestResource =
@@ -1438,8 +1576,11 @@ public final OperationFuture<Operation, Operation> setDefaultNetworkTierAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetDefaultNetworkTierProjectRequest request =
    *       SetDefaultNetworkTierProjectRequest.newBuilder()
@@ -1470,8 +1611,11 @@ public final OperationFuture<Operation, Operation> setDefaultNetworkTierAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetDefaultNetworkTierProjectRequest request =
    *       SetDefaultNetworkTierProjectRequest.newBuilder()
@@ -1500,8 +1644,11 @@ public final OperationFuture<Operation, Operation> setDefaultNetworkTierAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetDefaultNetworkTierProjectRequest request =
    *       SetDefaultNetworkTierProjectRequest.newBuilder()
@@ -1530,8 +1677,11 @@ public final OperationFuture<Operation, Operation> setDefaultNetworkTierAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   String project = "project-309310695";
    *   UsageExportLocation usageExportLocationResource = UsageExportLocation.newBuilder().build();
@@ -1562,8 +1712,11 @@ public final OperationFuture<Operation, Operation> setUsageExportBucketAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetUsageExportBucketProjectRequest request =
    *       SetUsageExportBucketProjectRequest.newBuilder()
@@ -1593,8 +1746,11 @@ public final OperationFuture<Operation, Operation> setUsageExportBucketAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetUsageExportBucketProjectRequest request =
    *       SetUsageExportBucketProjectRequest.newBuilder()
@@ -1622,8 +1778,11 @@ public final OperationFuture<Operation, Operation> setUsageExportBucketAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ProjectsClient projectsClient = ProjectsClient.create()) {
    *   SetUsageExportBucketProjectRequest request =
    *       SetUsageExportBucketProjectRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsSettings.java
index 1e19a9ed2..2ab45d24b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ProjectsSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ProjectsSettings.Builder projectsSettingsBuilder = ProjectsSettings.newBuilder();
  * projectsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         projectsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         projectsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ProjectsSettings projectsSettings = projectsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesClient.java
index 41b20c826..6d7b4b4c7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
  *     PublicAdvertisedPrefixesClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicAdvertisedPrefixesSettings publicAdvertisedPrefixesSettings =
  *     PublicAdvertisedPrefixesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicAdvertisedPrefixesSettings publicAdvertisedPrefixesSettings =
  *     PublicAdvertisedPrefixesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
@@ -166,8 +175,11 @@ public PublicAdvertisedPrefixesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -198,8 +210,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   DeletePublicAdvertisedPrefixeRequest request =
@@ -229,8 +244,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   DeletePublicAdvertisedPrefixeRequest request =
@@ -258,8 +276,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   DeletePublicAdvertisedPrefixeRequest request =
@@ -286,8 +307,11 @@ public final UnaryCallable<DeletePublicAdvertisedPrefixeRequest, Operation> dele
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -317,8 +341,11 @@ public final PublicAdvertisedPrefix get(String project, String publicAdvertisedP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   GetPublicAdvertisedPrefixeRequest request =
@@ -344,8 +371,11 @@ public final PublicAdvertisedPrefix get(GetPublicAdvertisedPrefixeRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   GetPublicAdvertisedPrefixeRequest request =
@@ -373,8 +403,11 @@ public final PublicAdvertisedPrefix get(GetPublicAdvertisedPrefixeRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -407,8 +440,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   InsertPublicAdvertisedPrefixeRequest request =
@@ -439,8 +475,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   InsertPublicAdvertisedPrefixeRequest request =
@@ -469,8 +508,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   InsertPublicAdvertisedPrefixeRequest request =
@@ -497,8 +539,11 @@ public final UnaryCallable<InsertPublicAdvertisedPrefixeRequest, Operation> inse
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -525,8 +570,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   ListPublicAdvertisedPrefixesRequest request =
@@ -559,8 +607,11 @@ public final ListPagedResponse list(ListPublicAdvertisedPrefixesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   ListPublicAdvertisedPrefixesRequest request =
@@ -593,8 +644,11 @@ public final ListPagedResponse list(ListPublicAdvertisedPrefixesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   ListPublicAdvertisedPrefixesRequest request =
@@ -635,8 +689,11 @@ public final ListPagedResponse list(ListPublicAdvertisedPrefixesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -676,8 +733,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   PatchPublicAdvertisedPrefixeRequest request =
@@ -709,8 +769,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   PatchPublicAdvertisedPrefixeRequest request =
@@ -740,8 +803,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
    *     PublicAdvertisedPrefixesClient.create()) {
    *   PatchPublicAdvertisedPrefixeRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesSettings.java
index c0588d434..fc89ad4d3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicAdvertisedPrefixesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicAdvertisedPrefixesSettings.Builder publicAdvertisedPrefixesSettingsBuilder =
  *     PublicAdvertisedPrefixesSettings.newBuilder();
  * publicAdvertisedPrefixesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         publicAdvertisedPrefixesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         publicAdvertisedPrefixesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * PublicAdvertisedPrefixesSettings publicAdvertisedPrefixesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesClient.java
index ebf073f9f..a7d0c4576 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
  *     PublicDelegatedPrefixesClient.create()) {
  *   String project = "project-309310695";
@@ -86,8 +89,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicDelegatedPrefixesSettings publicDelegatedPrefixesSettings =
  *     PublicDelegatedPrefixesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -99,8 +105,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicDelegatedPrefixesSettings publicDelegatedPrefixesSettings =
  *     PublicDelegatedPrefixesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
@@ -167,8 +176,11 @@ public PublicDelegatedPrefixesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -195,8 +207,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   AggregatedListPublicDelegatedPrefixesRequest request =
@@ -231,8 +246,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   AggregatedListPublicDelegatedPrefixesRequest request =
@@ -268,8 +286,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   AggregatedListPublicDelegatedPrefixesRequest request =
@@ -312,8 +333,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -347,8 +371,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   DeletePublicDelegatedPrefixeRequest request =
@@ -379,8 +406,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   DeletePublicDelegatedPrefixeRequest request =
@@ -409,8 +439,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   DeletePublicDelegatedPrefixeRequest request =
@@ -438,8 +471,11 @@ public final UnaryCallable<DeletePublicDelegatedPrefixeRequest, Operation> delet
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -473,8 +509,11 @@ public final PublicDelegatedPrefix get(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   GetPublicDelegatedPrefixeRequest request =
@@ -501,8 +540,11 @@ public final PublicDelegatedPrefix get(GetPublicDelegatedPrefixeRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   GetPublicDelegatedPrefixeRequest request =
@@ -531,8 +573,11 @@ public final PublicDelegatedPrefix get(GetPublicDelegatedPrefixeRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -570,8 +615,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   InsertPublicDelegatedPrefixeRequest request =
@@ -603,8 +651,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   InsertPublicDelegatedPrefixeRequest request =
@@ -634,8 +685,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   InsertPublicDelegatedPrefixeRequest request =
@@ -663,8 +717,11 @@ public final UnaryCallable<InsertPublicDelegatedPrefixeRequest, Operation> inser
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -696,8 +753,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   ListPublicDelegatedPrefixesRequest request =
@@ -731,8 +791,11 @@ public final ListPagedResponse list(ListPublicDelegatedPrefixesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   ListPublicDelegatedPrefixesRequest request =
@@ -766,8 +829,11 @@ public final ListPagedResponse list(ListPublicDelegatedPrefixesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   ListPublicDelegatedPrefixesRequest request =
@@ -809,8 +875,11 @@ public final ListPagedResponse list(ListPublicDelegatedPrefixesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   String project = "project-309310695";
@@ -854,8 +923,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   PatchPublicDelegatedPrefixeRequest request =
@@ -888,8 +960,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   PatchPublicDelegatedPrefixeRequest request =
@@ -920,8 +995,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
    *     PublicDelegatedPrefixesClient.create()) {
    *   PatchPublicDelegatedPrefixeRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesSettings.java
index b9b1fb50f..1ec6da69b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/PublicDelegatedPrefixesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicDelegatedPrefixesSettings.Builder publicDelegatedPrefixesSettingsBuilder =
  *     PublicDelegatedPrefixesSettings.newBuilder();
  * publicDelegatedPrefixesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         publicDelegatedPrefixesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         publicDelegatedPrefixesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * PublicDelegatedPrefixesSettings publicDelegatedPrefixesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersClient.java
index d9eb497da..6547f6404 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionAutoscalersSettings regionAutoscalersSettings =
  *     RegionAutoscalersSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionAutoscalersSettings regionAutoscalersSettings =
  *     RegionAutoscalersSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionAutoscalersClient regionAutoscalersClient =
@@ -163,8 +172,11 @@ public RegionAutoscalersStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -196,8 +208,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   DeleteRegionAutoscalerRequest request =
    *       DeleteRegionAutoscalerRequest.newBuilder()
@@ -227,8 +242,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   DeleteRegionAutoscalerRequest request =
    *       DeleteRegionAutoscalerRequest.newBuilder()
@@ -256,8 +274,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   DeleteRegionAutoscalerRequest request =
    *       DeleteRegionAutoscalerRequest.newBuilder()
@@ -283,8 +304,11 @@ public final UnaryCallable<DeleteRegionAutoscalerRequest, Operation> deleteCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -315,8 +339,11 @@ public final Autoscaler get(String project, String region, String autoscaler) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   GetRegionAutoscalerRequest request =
    *       GetRegionAutoscalerRequest.newBuilder()
@@ -342,8 +369,11 @@ public final Autoscaler get(GetRegionAutoscalerRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   GetRegionAutoscalerRequest request =
    *       GetRegionAutoscalerRequest.newBuilder()
@@ -368,8 +398,11 @@ public final UnaryCallable<GetRegionAutoscalerRequest, Autoscaler> getCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -402,8 +435,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   InsertRegionAutoscalerRequest request =
    *       InsertRegionAutoscalerRequest.newBuilder()
@@ -433,8 +469,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   InsertRegionAutoscalerRequest request =
    *       InsertRegionAutoscalerRequest.newBuilder()
@@ -462,8 +501,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   InsertRegionAutoscalerRequest request =
    *       InsertRegionAutoscalerRequest.newBuilder()
@@ -489,8 +531,11 @@ public final UnaryCallable<InsertRegionAutoscalerRequest, Operation> insertCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -517,8 +562,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   ListRegionAutoscalersRequest request =
    *       ListRegionAutoscalersRequest.newBuilder()
@@ -550,8 +598,11 @@ public final ListPagedResponse list(ListRegionAutoscalersRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   ListRegionAutoscalersRequest request =
    *       ListRegionAutoscalersRequest.newBuilder()
@@ -583,8 +634,11 @@ public final UnaryCallable<ListRegionAutoscalersRequest, ListPagedResponse> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   ListRegionAutoscalersRequest request =
    *       ListRegionAutoscalersRequest.newBuilder()
@@ -623,8 +677,11 @@ public final UnaryCallable<ListRegionAutoscalersRequest, RegionAutoscalerList> l
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -658,8 +715,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   PatchRegionAutoscalerRequest request =
    *       PatchRegionAutoscalerRequest.newBuilder()
@@ -691,8 +751,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   PatchRegionAutoscalerRequest request =
    *       PatchRegionAutoscalerRequest.newBuilder()
@@ -722,8 +785,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   PatchRegionAutoscalerRequest request =
    *       PatchRegionAutoscalerRequest.newBuilder()
@@ -750,8 +816,11 @@ public final UnaryCallable<PatchRegionAutoscalerRequest, Operation> patchCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -784,8 +853,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   UpdateRegionAutoscalerRequest request =
    *       UpdateRegionAutoscalerRequest.newBuilder()
@@ -816,8 +888,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   UpdateRegionAutoscalerRequest request =
    *       UpdateRegionAutoscalerRequest.newBuilder()
@@ -846,8 +921,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
    *   UpdateRegionAutoscalerRequest request =
    *       UpdateRegionAutoscalerRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersSettings.java
index 525bd4476..fcfe9a6fa 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionAutoscalersSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionAutoscalersSettings.Builder regionAutoscalersSettingsBuilder =
  *     RegionAutoscalersSettings.newBuilder();
  * regionAutoscalersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionAutoscalersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionAutoscalersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionAutoscalersSettings regionAutoscalersSettings = regionAutoscalersSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesClient.java
index 03e4b57ac..e4b31bbad 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionBackendServicesClient regionBackendServicesClient =
  *     RegionBackendServicesClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionBackendServicesSettings regionBackendServicesSettings =
  *     RegionBackendServicesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionBackendServicesSettings regionBackendServicesSettings =
  *     RegionBackendServicesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionBackendServicesClient regionBackendServicesClient =
@@ -164,8 +173,11 @@ public RegionBackendServicesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -199,8 +211,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   DeleteRegionBackendServiceRequest request =
@@ -231,8 +246,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   DeleteRegionBackendServiceRequest request =
@@ -261,8 +279,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   DeleteRegionBackendServiceRequest request =
@@ -290,8 +311,11 @@ public final UnaryCallable<DeleteRegionBackendServiceRequest, Operation> deleteC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -323,8 +347,11 @@ public final BackendService get(String project, String region, String backendSer
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   GetRegionBackendServiceRequest request =
@@ -351,8 +378,11 @@ public final BackendService get(GetRegionBackendServiceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   GetRegionBackendServiceRequest request =
@@ -379,8 +409,11 @@ public final UnaryCallable<GetRegionBackendServiceRequest, BackendService> getCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -422,8 +455,11 @@ public final BackendServiceGroupHealth getHealth(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   GetHealthRegionBackendServiceRequest request =
@@ -451,8 +487,11 @@ public final BackendServiceGroupHealth getHealth(GetHealthRegionBackendServiceRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   GetHealthRegionBackendServiceRequest request =
@@ -482,8 +521,11 @@ public final BackendServiceGroupHealth getHealth(GetHealthRegionBackendServiceRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -518,8 +560,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   InsertRegionBackendServiceRequest request =
@@ -551,8 +596,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   InsertRegionBackendServiceRequest request =
@@ -582,8 +630,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   InsertRegionBackendServiceRequest request =
@@ -612,8 +663,11 @@ public final UnaryCallable<InsertRegionBackendServiceRequest, Operation> insertC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -643,8 +697,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   ListRegionBackendServicesRequest request =
@@ -678,8 +735,11 @@ public final ListPagedResponse list(ListRegionBackendServicesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   ListRegionBackendServicesRequest request =
@@ -714,8 +774,11 @@ public final ListPagedResponse list(ListRegionBackendServicesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   ListRegionBackendServicesRequest request =
@@ -756,8 +819,11 @@ public final UnaryCallable<ListRegionBackendServicesRequest, BackendServiceList>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -798,8 +864,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   PatchRegionBackendServiceRequest request =
@@ -833,8 +902,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   PatchRegionBackendServiceRequest request =
@@ -866,8 +938,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   PatchRegionBackendServiceRequest request =
@@ -896,8 +971,11 @@ public final UnaryCallable<PatchRegionBackendServiceRequest, Operation> patchCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   String project = "project-309310695";
@@ -937,8 +1015,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   UpdateRegionBackendServiceRequest request =
@@ -971,8 +1052,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   UpdateRegionBackendServiceRequest request =
@@ -1003,8 +1087,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionBackendServicesClient regionBackendServicesClient =
    *     RegionBackendServicesClient.create()) {
    *   UpdateRegionBackendServiceRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesSettings.java
index c00b4780f..e9ab93b03 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionBackendServicesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionBackendServicesSettings.Builder regionBackendServicesSettingsBuilder =
  *     RegionBackendServicesSettings.newBuilder();
  * regionBackendServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionBackendServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionBackendServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionBackendServicesSettings regionBackendServicesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsClient.java
index 6477705a5..cb6267be4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionCommitmentsSettings regionCommitmentsSettings =
  *     RegionCommitmentsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionCommitmentsSettings regionCommitmentsSettings =
  *     RegionCommitmentsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionCommitmentsClient regionCommitmentsClient =
@@ -164,8 +173,11 @@ public RegionCommitmentsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, CommitmentsScopedList> element :
@@ -191,8 +203,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   AggregatedListRegionCommitmentsRequest request =
    *       AggregatedListRegionCommitmentsRequest.newBuilder()
@@ -226,8 +241,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   AggregatedListRegionCommitmentsRequest request =
    *       AggregatedListRegionCommitmentsRequest.newBuilder()
@@ -260,8 +278,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   AggregatedListRegionCommitmentsRequest request =
    *       AggregatedListRegionCommitmentsRequest.newBuilder()
@@ -302,8 +323,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -335,8 +359,11 @@ public final Commitment get(String project, String region, String commitment) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   GetRegionCommitmentRequest request =
    *       GetRegionCommitmentRequest.newBuilder()
@@ -363,8 +390,11 @@ public final Commitment get(GetRegionCommitmentRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   GetRegionCommitmentRequest request =
    *       GetRegionCommitmentRequest.newBuilder()
@@ -389,8 +419,11 @@ public final UnaryCallable<GetRegionCommitmentRequest, Commitment> getCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -423,8 +456,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   InsertRegionCommitmentRequest request =
    *       InsertRegionCommitmentRequest.newBuilder()
@@ -454,8 +490,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   InsertRegionCommitmentRequest request =
    *       InsertRegionCommitmentRequest.newBuilder()
@@ -483,8 +522,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   InsertRegionCommitmentRequest request =
    *       InsertRegionCommitmentRequest.newBuilder()
@@ -510,8 +552,11 @@ public final UnaryCallable<InsertRegionCommitmentRequest, Operation> insertCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -538,8 +583,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   ListRegionCommitmentsRequest request =
    *       ListRegionCommitmentsRequest.newBuilder()
@@ -571,8 +619,11 @@ public final ListPagedResponse list(ListRegionCommitmentsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   ListRegionCommitmentsRequest request =
    *       ListRegionCommitmentsRequest.newBuilder()
@@ -604,8 +655,11 @@ public final UnaryCallable<ListRegionCommitmentsRequest, ListPagedResponse> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   ListRegionCommitmentsRequest request =
    *       ListRegionCommitmentsRequest.newBuilder()
@@ -645,8 +699,11 @@ public final UnaryCallable<ListRegionCommitmentsRequest, CommitmentList> listCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -686,8 +743,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   UpdateRegionCommitmentRequest request =
    *       UpdateRegionCommitmentRequest.newBuilder()
@@ -722,8 +782,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   UpdateRegionCommitmentRequest request =
    *       UpdateRegionCommitmentRequest.newBuilder()
@@ -756,8 +819,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
    *   UpdateRegionCommitmentRequest request =
    *       UpdateRegionCommitmentRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsSettings.java
index 06495fe3a..b70c6e697 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionCommitmentsSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionCommitmentsSettings.Builder regionCommitmentsSettingsBuilder =
  *     RegionCommitmentsSettings.newBuilder();
  * regionCommitmentsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionCommitmentsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionCommitmentsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionCommitmentsSettings regionCommitmentsSettings = regionCommitmentsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesClient.java
index bcc68f94a..f5e8e4c11 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -80,8 +83,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDiskTypesSettings regionDiskTypesSettings =
  *     RegionDiskTypesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDiskTypesSettings regionDiskTypesSettings =
  *     RegionDiskTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionDiskTypesClient regionDiskTypesClient =
@@ -161,8 +170,11 @@ public RegionDiskTypesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -194,8 +206,11 @@ public final DiskType get(String project, String region, String diskType) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   GetRegionDiskTypeRequest request =
    *       GetRegionDiskTypeRequest.newBuilder()
@@ -222,8 +237,11 @@ public final DiskType get(GetRegionDiskTypeRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   GetRegionDiskTypeRequest request =
    *       GetRegionDiskTypeRequest.newBuilder()
@@ -248,8 +266,11 @@ public final UnaryCallable<GetRegionDiskTypeRequest, DiskType> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -276,8 +297,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   ListRegionDiskTypesRequest request =
    *       ListRegionDiskTypesRequest.newBuilder()
@@ -309,8 +333,11 @@ public final ListPagedResponse list(ListRegionDiskTypesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   ListRegionDiskTypesRequest request =
    *       ListRegionDiskTypesRequest.newBuilder()
@@ -341,8 +368,11 @@ public final UnaryCallable<ListRegionDiskTypesRequest, ListPagedResponse> listPa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
    *   ListRegionDiskTypesRequest request =
    *       ListRegionDiskTypesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesSettings.java
index 306976460..3eb6d96b5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDiskTypesSettings.java
@@ -52,17 +52,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDiskTypesSettings.Builder regionDiskTypesSettingsBuilder =
  *     RegionDiskTypesSettings.newBuilder();
  * regionDiskTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionDiskTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionDiskTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionDiskTypesSettings regionDiskTypesSettings = regionDiskTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksClient.java
index a24e95d7f..48f785334 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDisksSettings regionDisksSettings =
  *     RegionDisksSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDisksSettings regionDisksSettings =
  *     RegionDisksSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionDisksClient regionDisksClient = RegionDisksClient.create(regionDisksSettings);
@@ -160,8 +169,11 @@ public RegionDisksStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -206,8 +218,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   AddResourcePoliciesRegionDiskRequest request =
    *       AddResourcePoliciesRegionDiskRequest.newBuilder()
@@ -240,8 +255,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   AddResourcePoliciesRegionDiskRequest request =
    *       AddResourcePoliciesRegionDiskRequest.newBuilder()
@@ -272,8 +290,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   AddResourcePoliciesRegionDiskRequest request =
    *       AddResourcePoliciesRegionDiskRequest.newBuilder()
@@ -305,8 +326,11 @@ public final OperationFuture<Operation, Operation> addResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -344,8 +368,11 @@ public final OperationFuture<Operation, Operation> createSnapshotAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   CreateSnapshotRegionDiskRequest request =
    *       CreateSnapshotRegionDiskRequest.newBuilder()
@@ -378,8 +405,11 @@ public final OperationFuture<Operation, Operation> createSnapshotAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   CreateSnapshotRegionDiskRequest request =
    *       CreateSnapshotRegionDiskRequest.newBuilder()
@@ -410,8 +440,11 @@ public final OperationFuture<Operation, Operation> createSnapshotAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   CreateSnapshotRegionDiskRequest request =
    *       CreateSnapshotRegionDiskRequest.newBuilder()
@@ -440,8 +473,11 @@ public final UnaryCallable<CreateSnapshotRegionDiskRequest, Operation> createSna
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -475,8 +511,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   DeleteRegionDiskRequest request =
    *       DeleteRegionDiskRequest.newBuilder()
@@ -507,8 +546,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteRegionDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   DeleteRegionDiskRequest request =
    *       DeleteRegionDiskRequest.newBuilder()
@@ -538,8 +580,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteRegionDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   DeleteRegionDiskRequest request =
    *       DeleteRegionDiskRequest.newBuilder()
@@ -565,8 +610,11 @@ public final UnaryCallable<DeleteRegionDiskRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -597,8 +645,11 @@ public final Disk get(String project, String region, String disk) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   GetRegionDiskRequest request =
    *       GetRegionDiskRequest.newBuilder()
@@ -624,8 +675,11 @@ public final Disk get(GetRegionDiskRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   GetRegionDiskRequest request =
    *       GetRegionDiskRequest.newBuilder()
@@ -651,8 +705,11 @@ public final UnaryCallable<GetRegionDiskRequest, Disk> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -684,8 +741,11 @@ public final Policy getIamPolicy(String project, String region, String resource)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   GetIamPolicyRegionDiskRequest request =
    *       GetIamPolicyRegionDiskRequest.newBuilder()
@@ -713,8 +773,11 @@ public final Policy getIamPolicy(GetIamPolicyRegionDiskRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   GetIamPolicyRegionDiskRequest request =
    *       GetIamPolicyRegionDiskRequest.newBuilder()
@@ -741,8 +804,11 @@ public final UnaryCallable<GetIamPolicyRegionDiskRequest, Policy> getIamPolicyCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -775,8 +841,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   InsertRegionDiskRequest request =
    *       InsertRegionDiskRequest.newBuilder()
@@ -807,8 +876,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertRegionDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   InsertRegionDiskRequest request =
    *       InsertRegionDiskRequest.newBuilder()
@@ -838,8 +910,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertRegionDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   InsertRegionDiskRequest request =
    *       InsertRegionDiskRequest.newBuilder()
@@ -866,8 +941,11 @@ public final UnaryCallable<InsertRegionDiskRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -894,8 +972,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   ListRegionDisksRequest request =
    *       ListRegionDisksRequest.newBuilder()
@@ -927,8 +1008,11 @@ public final ListPagedResponse list(ListRegionDisksRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   ListRegionDisksRequest request =
    *       ListRegionDisksRequest.newBuilder()
@@ -959,8 +1043,11 @@ public final UnaryCallable<ListRegionDisksRequest, ListPagedResponse> listPagedC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   ListRegionDisksRequest request =
    *       ListRegionDisksRequest.newBuilder()
@@ -998,8 +1085,11 @@ public final UnaryCallable<ListRegionDisksRequest, DiskList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1043,8 +1133,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   RemoveResourcePoliciesRegionDiskRequest request =
    *       RemoveResourcePoliciesRegionDiskRequest.newBuilder()
@@ -1076,8 +1169,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   RemoveResourcePoliciesRegionDiskRequest request =
    *       RemoveResourcePoliciesRegionDiskRequest.newBuilder()
@@ -1107,8 +1203,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   RemoveResourcePoliciesRegionDiskRequest request =
    *       RemoveResourcePoliciesRegionDiskRequest.newBuilder()
@@ -1138,8 +1237,11 @@ public final OperationFuture<Operation, Operation> removeResourcePoliciesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1181,8 +1283,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   ResizeRegionDiskRequest request =
    *       ResizeRegionDiskRequest.newBuilder()
@@ -1212,8 +1317,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(ResizeRegionDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   ResizeRegionDiskRequest request =
    *       ResizeRegionDiskRequest.newBuilder()
@@ -1242,8 +1350,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(ResizeRegionDiskR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   ResizeRegionDiskRequest request =
    *       ResizeRegionDiskRequest.newBuilder()
@@ -1270,8 +1381,11 @@ public final UnaryCallable<ResizeRegionDiskRequest, Operation> resizeCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1311,8 +1425,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   SetIamPolicyRegionDiskRequest request =
    *       SetIamPolicyRegionDiskRequest.newBuilder()
@@ -1339,8 +1456,11 @@ public final Policy setIamPolicy(SetIamPolicyRegionDiskRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   SetIamPolicyRegionDiskRequest request =
    *       SetIamPolicyRegionDiskRequest.newBuilder()
@@ -1366,8 +1486,11 @@ public final UnaryCallable<SetIamPolicyRegionDiskRequest, Policy> setIamPolicyCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1409,8 +1532,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   SetLabelsRegionDiskRequest request =
    *       SetLabelsRegionDiskRequest.newBuilder()
@@ -1441,8 +1567,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   SetLabelsRegionDiskRequest request =
    *       SetLabelsRegionDiskRequest.newBuilder()
@@ -1471,8 +1600,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   SetLabelsRegionDiskRequest request =
    *       SetLabelsRegionDiskRequest.newBuilder()
@@ -1499,8 +1631,11 @@ public final UnaryCallable<SetLabelsRegionDiskRequest, Operation> setLabelsCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1541,8 +1676,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   TestIamPermissionsRegionDiskRequest request =
    *       TestIamPermissionsRegionDiskRequest.newBuilder()
@@ -1570,8 +1708,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
    *   TestIamPermissionsRegionDiskRequest request =
    *       TestIamPermissionsRegionDiskRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksSettings.java
index 5686b0263..cfd6eff58 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionDisksSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDisksSettings.Builder regionDisksSettingsBuilder = RegionDisksSettings.newBuilder();
  * regionDisksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionDisksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionDisksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionDisksSettings regionDisksSettings = regionDisksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesClient.java
index 924270e66..6438bf176 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
  *     RegionHealthCheckServicesClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthCheckServicesSettings regionHealthCheckServicesSettings =
  *     RegionHealthCheckServicesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthCheckServicesSettings regionHealthCheckServicesSettings =
  *     RegionHealthCheckServicesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionHealthCheckServicesClient regionHealthCheckServicesClient =
@@ -167,8 +176,11 @@ public RegionHealthCheckServicesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   String project = "project-309310695";
@@ -203,8 +215,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   DeleteRegionHealthCheckServiceRequest request =
@@ -235,8 +250,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   DeleteRegionHealthCheckServiceRequest request =
@@ -265,8 +283,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   DeleteRegionHealthCheckServiceRequest request =
@@ -294,8 +315,11 @@ public final UnaryCallable<DeleteRegionHealthCheckServiceRequest, Operation> del
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   String project = "project-309310695";
@@ -329,8 +353,11 @@ public final HealthCheckService get(String project, String region, String health
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   GetRegionHealthCheckServiceRequest request =
@@ -357,8 +384,11 @@ public final HealthCheckService get(GetRegionHealthCheckServiceRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   GetRegionHealthCheckServiceRequest request =
@@ -386,8 +416,11 @@ public final UnaryCallable<GetRegionHealthCheckServiceRequest, HealthCheckServic
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   String project = "project-309310695";
@@ -424,8 +457,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   InsertRegionHealthCheckServiceRequest request =
@@ -457,8 +493,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   InsertRegionHealthCheckServiceRequest request =
@@ -488,8 +527,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   InsertRegionHealthCheckServiceRequest request =
@@ -518,8 +560,11 @@ public final UnaryCallable<InsertRegionHealthCheckServiceRequest, Operation> ins
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   String project = "project-309310695";
@@ -552,8 +597,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   ListRegionHealthCheckServicesRequest request =
@@ -588,8 +636,11 @@ public final ListPagedResponse list(ListRegionHealthCheckServicesRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   ListRegionHealthCheckServicesRequest request =
@@ -624,8 +675,11 @@ public final ListPagedResponse list(ListRegionHealthCheckServicesRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   ListRegionHealthCheckServicesRequest request =
@@ -668,8 +722,11 @@ public final ListPagedResponse list(ListRegionHealthCheckServicesRequest request
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   String project = "project-309310695";
@@ -714,8 +771,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   PatchRegionHealthCheckServiceRequest request =
@@ -749,8 +809,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   PatchRegionHealthCheckServiceRequest request =
@@ -782,8 +845,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
    *     RegionHealthCheckServicesClient.create()) {
    *   PatchRegionHealthCheckServiceRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesSettings.java
index bf1a256d5..927dc1a18 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthCheckServicesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthCheckServicesSettings.Builder regionHealthCheckServicesSettingsBuilder =
  *     RegionHealthCheckServicesSettings.newBuilder();
  * regionHealthCheckServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionHealthCheckServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionHealthCheckServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionHealthCheckServicesSettings regionHealthCheckServicesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksClient.java
index 1446a849e..9e5fd663c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthChecksSettings regionHealthChecksSettings =
  *     RegionHealthChecksSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthChecksSettings regionHealthChecksSettings =
  *     RegionHealthChecksSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionHealthChecksClient regionHealthChecksClient =
@@ -163,8 +172,11 @@ public RegionHealthChecksStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -196,8 +208,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   DeleteRegionHealthCheckRequest request =
    *       DeleteRegionHealthCheckRequest.newBuilder()
@@ -227,8 +242,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   DeleteRegionHealthCheckRequest request =
    *       DeleteRegionHealthCheckRequest.newBuilder()
@@ -256,8 +274,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   DeleteRegionHealthCheckRequest request =
    *       DeleteRegionHealthCheckRequest.newBuilder()
@@ -284,8 +305,11 @@ public final UnaryCallable<DeleteRegionHealthCheckRequest, Operation> deleteCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -317,8 +341,11 @@ public final HealthCheck get(String project, String region, String healthCheck)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   GetRegionHealthCheckRequest request =
    *       GetRegionHealthCheckRequest.newBuilder()
@@ -345,8 +372,11 @@ public final HealthCheck get(GetRegionHealthCheckRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   GetRegionHealthCheckRequest request =
    *       GetRegionHealthCheckRequest.newBuilder()
@@ -371,8 +401,11 @@ public final UnaryCallable<GetRegionHealthCheckRequest, HealthCheck> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -405,8 +438,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   InsertRegionHealthCheckRequest request =
    *       InsertRegionHealthCheckRequest.newBuilder()
@@ -436,8 +472,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   InsertRegionHealthCheckRequest request =
    *       InsertRegionHealthCheckRequest.newBuilder()
@@ -465,8 +504,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   InsertRegionHealthCheckRequest request =
    *       InsertRegionHealthCheckRequest.newBuilder()
@@ -492,8 +534,11 @@ public final UnaryCallable<InsertRegionHealthCheckRequest, Operation> insertCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -520,8 +565,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   ListRegionHealthChecksRequest request =
    *       ListRegionHealthChecksRequest.newBuilder()
@@ -553,8 +601,11 @@ public final ListPagedResponse list(ListRegionHealthChecksRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   ListRegionHealthChecksRequest request =
    *       ListRegionHealthChecksRequest.newBuilder()
@@ -586,8 +637,11 @@ public final UnaryCallable<ListRegionHealthChecksRequest, ListPagedResponse> lis
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   ListRegionHealthChecksRequest request =
    *       ListRegionHealthChecksRequest.newBuilder()
@@ -626,8 +680,11 @@ public final UnaryCallable<ListRegionHealthChecksRequest, HealthCheckList> listC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -666,8 +723,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   PatchRegionHealthCheckRequest request =
    *       PatchRegionHealthCheckRequest.newBuilder()
@@ -699,8 +759,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   PatchRegionHealthCheckRequest request =
    *       PatchRegionHealthCheckRequest.newBuilder()
@@ -730,8 +793,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   PatchRegionHealthCheckRequest request =
    *       PatchRegionHealthCheckRequest.newBuilder()
@@ -758,8 +824,11 @@ public final UnaryCallable<PatchRegionHealthCheckRequest, Operation> patchCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -797,8 +866,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   UpdateRegionHealthCheckRequest request =
    *       UpdateRegionHealthCheckRequest.newBuilder()
@@ -829,8 +901,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   UpdateRegionHealthCheckRequest request =
    *       UpdateRegionHealthCheckRequest.newBuilder()
@@ -859,8 +934,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
    *   UpdateRegionHealthCheckRequest request =
    *       UpdateRegionHealthCheckRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksSettings.java
index 90e0947da..d6324bdc3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionHealthChecksSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthChecksSettings.Builder regionHealthChecksSettingsBuilder =
  *     RegionHealthChecksSettings.newBuilder();
  * regionHealthChecksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionHealthChecksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionHealthChecksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionHealthChecksSettings regionHealthChecksSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersClient.java
index cf73701ad..aa1c52705 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
  *     RegionInstanceGroupManagersClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupManagersSettings regionInstanceGroupManagersSettings =
  *     RegionInstanceGroupManagersSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupManagersSettings regionInstanceGroupManagersSettings =
  *     RegionInstanceGroupManagersSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
@@ -177,8 +186,11 @@ public RegionInstanceGroupManagersStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -238,8 +250,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   AbandonInstancesRegionInstanceGroupManagerRequest request =
@@ -281,8 +296,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   AbandonInstancesRegionInstanceGroupManagerRequest request =
@@ -323,8 +341,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   AbandonInstancesRegionInstanceGroupManagerRequest request =
@@ -355,8 +376,11 @@ public final OperationFuture<Operation, Operation> abandonInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -407,8 +431,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ApplyUpdatesToInstancesRegionInstanceGroupManagerRequest request =
@@ -441,8 +468,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ApplyUpdatesToInstancesRegionInstanceGroupManagerRequest request =
@@ -475,8 +505,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ApplyUpdatesToInstancesRegionInstanceGroupManagerRequest request =
@@ -510,8 +543,11 @@ public final OperationFuture<Operation, Operation> applyUpdatesToInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -568,8 +604,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   CreateInstancesRegionInstanceGroupManagerRequest request =
@@ -606,8 +645,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   CreateInstancesRegionInstanceGroupManagerRequest request =
@@ -643,8 +685,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   CreateInstancesRegionInstanceGroupManagerRequest request =
@@ -675,8 +720,11 @@ public final OperationFuture<Operation, Operation> createInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -712,8 +760,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeleteRegionInstanceGroupManagerRequest request =
@@ -744,8 +795,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeleteRegionInstanceGroupManagerRequest request =
@@ -774,8 +828,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeleteRegionInstanceGroupManagerRequest request =
@@ -811,8 +868,11 @@ public final UnaryCallable<DeleteRegionInstanceGroupManagerRequest, Operation> d
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -871,8 +931,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeleteInstancesRegionInstanceGroupManagerRequest request =
@@ -913,8 +976,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeleteInstancesRegionInstanceGroupManagerRequest request =
@@ -954,8 +1020,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeleteInstancesRegionInstanceGroupManagerRequest request =
@@ -986,8 +1055,11 @@ public final OperationFuture<Operation, Operation> deleteInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1039,8 +1111,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeletePerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -1073,8 +1148,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeletePerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -1107,8 +1185,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   DeletePerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -1138,8 +1219,11 @@ public final OperationFuture<Operation, Operation> deletePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1173,8 +1257,11 @@ public final InstanceGroupManager get(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   GetRegionInstanceGroupManagerRequest request =
@@ -1201,8 +1288,11 @@ public final InstanceGroupManager get(GetRegionInstanceGroupManagerRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   GetRegionInstanceGroupManagerRequest request =
@@ -1235,8 +1325,11 @@ public final InstanceGroupManager get(GetRegionInstanceGroupManagerRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1277,8 +1370,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   InsertRegionInstanceGroupManagerRequest request =
@@ -1314,8 +1410,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   InsertRegionInstanceGroupManagerRequest request =
@@ -1349,8 +1448,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   InsertRegionInstanceGroupManagerRequest request =
@@ -1378,8 +1480,11 @@ public final UnaryCallable<InsertRegionInstanceGroupManagerRequest, Operation> i
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1411,8 +1516,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListRegionInstanceGroupManagersRequest request =
@@ -1446,8 +1554,11 @@ public final ListPagedResponse list(ListRegionInstanceGroupManagersRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListRegionInstanceGroupManagersRequest request =
@@ -1481,8 +1592,11 @@ public final ListPagedResponse list(ListRegionInstanceGroupManagersRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListRegionInstanceGroupManagersRequest request =
@@ -1524,8 +1638,11 @@ public final ListPagedResponse list(ListRegionInstanceGroupManagersRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1566,8 +1683,11 @@ public final ListErrorsPagedResponse listErrors(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListErrorsRegionInstanceGroupManagersRequest request =
@@ -1604,8 +1724,11 @@ public final ListErrorsPagedResponse listErrors(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListErrorsRegionInstanceGroupManagersRequest request =
@@ -1641,8 +1764,11 @@ public final ListErrorsPagedResponse listErrors(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListErrorsRegionInstanceGroupManagersRequest request =
@@ -1690,8 +1816,11 @@ public final ListErrorsPagedResponse listErrors(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1733,8 +1862,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListManagedInstancesRegionInstanceGroupManagersRequest request =
@@ -1774,8 +1906,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListManagedInstancesRegionInstanceGroupManagersRequest request =
@@ -1815,8 +1950,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListManagedInstancesRegionInstanceGroupManagersRequest request =
@@ -1861,8 +1999,11 @@ public final ListManagedInstancesPagedResponse listManagedInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -1902,8 +2043,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListPerInstanceConfigsRegionInstanceGroupManagersRequest request =
@@ -1940,8 +2084,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListPerInstanceConfigsRegionInstanceGroupManagersRequest request =
@@ -1981,8 +2128,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ListPerInstanceConfigsRegionInstanceGroupManagersRequest request =
@@ -2033,8 +2183,11 @@ public final ListPerInstanceConfigsPagedResponse listPerInstanceConfigs(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2083,8 +2236,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   PatchRegionInstanceGroupManagerRequest request =
@@ -2123,8 +2279,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   PatchRegionInstanceGroupManagerRequest request =
@@ -2161,8 +2320,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   PatchRegionInstanceGroupManagerRequest request =
@@ -2192,8 +2354,11 @@ public final UnaryCallable<PatchRegionInstanceGroupManagerRequest, Operation> pa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2246,8 +2411,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   PatchPerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -2282,8 +2450,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   PatchPerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -2318,8 +2489,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   PatchPerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -2357,8 +2531,11 @@ public final OperationFuture<Operation, Operation> patchPerInstanceConfigsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2415,8 +2592,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   RecreateInstancesRegionInstanceGroupManagerRequest request =
@@ -2456,8 +2636,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   RecreateInstancesRegionInstanceGroupManagerRequest request =
@@ -2498,8 +2681,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   RecreateInstancesRegionInstanceGroupManagerRequest request =
@@ -2536,8 +2722,11 @@ public final OperationFuture<Operation, Operation> recreateInstancesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2582,8 +2771,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ResizeRegionInstanceGroupManagerRequest request =
@@ -2621,8 +2813,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ResizeRegionInstanceGroupManagerRequest request =
@@ -2658,8 +2853,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   ResizeRegionInstanceGroupManagerRequest request =
@@ -2689,8 +2887,11 @@ public final UnaryCallable<ResizeRegionInstanceGroupManagerRequest, Operation> r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2741,8 +2942,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   SetInstanceTemplateRegionInstanceGroupManagerRequest request =
@@ -2777,8 +2981,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   SetInstanceTemplateRegionInstanceGroupManagerRequest request =
@@ -2813,8 +3020,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   SetInstanceTemplateRegionInstanceGroupManagerRequest request =
@@ -2846,8 +3056,11 @@ public final OperationFuture<Operation, Operation> setInstanceTemplateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -2899,8 +3112,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   SetTargetPoolsRegionInstanceGroupManagerRequest request =
@@ -2934,8 +3150,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   SetTargetPoolsRegionInstanceGroupManagerRequest request =
@@ -2968,8 +3187,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   SetTargetPoolsRegionInstanceGroupManagerRequest request =
@@ -3001,8 +3223,11 @@ public final OperationFuture<Operation, Operation> setTargetPoolsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   String project = "project-309310695";
@@ -3055,8 +3280,11 @@ public final OperationFuture<Operation, Operation> updatePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   UpdatePerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -3091,8 +3319,11 @@ public final OperationFuture<Operation, Operation> updatePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   UpdatePerInstanceConfigsRegionInstanceGroupManagerRequest request =
@@ -3127,8 +3358,11 @@ public final OperationFuture<Operation, Operation> updatePerInstanceConfigsAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
    *     RegionInstanceGroupManagersClient.create()) {
    *   UpdatePerInstanceConfigsRegionInstanceGroupManagerRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersSettings.java
index 487bbe54a..1e9bfc50c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupManagersSettings.java
@@ -56,17 +56,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupManagersSettings.Builder regionInstanceGroupManagersSettingsBuilder =
  *     RegionInstanceGroupManagersSettings.newBuilder();
  * regionInstanceGroupManagersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionInstanceGroupManagersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionInstanceGroupManagersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionInstanceGroupManagersSettings regionInstanceGroupManagersSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsClient.java
index b65167154..4f61325a7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
  *     RegionInstanceGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupsSettings regionInstanceGroupsSettings =
  *     RegionInstanceGroupsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupsSettings regionInstanceGroupsSettings =
  *     RegionInstanceGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionInstanceGroupsClient regionInstanceGroupsClient =
@@ -164,8 +173,11 @@ public RegionInstanceGroupsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -197,8 +209,11 @@ public final InstanceGroup get(String project, String region, String instanceGro
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   GetRegionInstanceGroupRequest request =
@@ -225,8 +240,11 @@ public final InstanceGroup get(GetRegionInstanceGroupRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   GetRegionInstanceGroupRequest request =
@@ -253,8 +271,11 @@ public final UnaryCallable<GetRegionInstanceGroupRequest, InstanceGroup> getCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -282,8 +303,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   ListRegionInstanceGroupsRequest request =
@@ -316,8 +340,11 @@ public final ListPagedResponse list(ListRegionInstanceGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   ListRegionInstanceGroupsRequest request =
@@ -351,8 +378,11 @@ public final ListPagedResponse list(ListRegionInstanceGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   ListRegionInstanceGroupsRequest request =
@@ -394,8 +424,11 @@ public final ListPagedResponse list(ListRegionInstanceGroupsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -445,8 +478,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   ListInstancesRegionInstanceGroupsRequest request =
@@ -486,8 +522,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   ListInstancesRegionInstanceGroupsRequest request =
@@ -526,8 +565,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   ListInstancesRegionInstanceGroupsRequest request =
@@ -572,8 +614,11 @@ public final ListInstancesPagedResponse listInstances(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -618,8 +663,11 @@ public final OperationFuture<Operation, Operation> setNamedPortsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   SetNamedPortsRegionInstanceGroupRequest request =
@@ -652,8 +700,11 @@ public final OperationFuture<Operation, Operation> setNamedPortsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   SetNamedPortsRegionInstanceGroupRequest request =
@@ -684,8 +735,11 @@ public final OperationFuture<Operation, Operation> setNamedPortsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
    *     RegionInstanceGroupsClient.create()) {
    *   SetNamedPortsRegionInstanceGroupRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsSettings.java
index 12741a243..43a9fc37b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstanceGroupsSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupsSettings.Builder regionInstanceGroupsSettingsBuilder =
  *     RegionInstanceGroupsSettings.newBuilder();
  * regionInstanceGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionInstanceGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionInstanceGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionInstanceGroupsSettings regionInstanceGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesClient.java
index e9b4eb2ae..04519cbb2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesClient.java
@@ -35,8 +35,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionInstancesClient regionInstancesClient = RegionInstancesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -79,8 +82,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstancesSettings regionInstancesSettings =
  *     RegionInstancesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -92,8 +98,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstancesSettings regionInstancesSettings =
  *     RegionInstancesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionInstancesClient regionInstancesClient =
@@ -160,8 +169,11 @@ public RegionInstancesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstancesClient regionInstancesClient = RegionInstancesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -200,8 +212,11 @@ public final OperationFuture<Operation, Operation> bulkInsertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstancesClient regionInstancesClient = RegionInstancesClient.create()) {
    *   BulkInsertRegionInstanceRequest request =
    *       BulkInsertRegionInstanceRequest.newBuilder()
@@ -233,8 +248,11 @@ public final OperationFuture<Operation, Operation> bulkInsertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstancesClient regionInstancesClient = RegionInstancesClient.create()) {
    *   BulkInsertRegionInstanceRequest request =
    *       BulkInsertRegionInstanceRequest.newBuilder()
@@ -264,8 +282,11 @@ public final OperationFuture<Operation, Operation> bulkInsertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionInstancesClient regionInstancesClient = RegionInstancesClient.create()) {
    *   BulkInsertRegionInstanceRequest request =
    *       BulkInsertRegionInstanceRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesSettings.java
index 297795978..c22e2d4c9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionInstancesSettings.java
@@ -50,17 +50,17 @@
  * <p>For example, to set the total timeout of bulkInsert to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstancesSettings.Builder regionInstancesSettingsBuilder =
  *     RegionInstancesSettings.newBuilder();
  * regionInstancesSettingsBuilder
  *     .bulkInsertSettings()
  *     .setRetrySettings(
- *         regionInstancesSettingsBuilder
- *             .bulkInsertSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionInstancesSettingsBuilder.bulkInsertSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionInstancesSettings regionInstancesSettings = regionInstancesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsClient.java
index 283b97f2c..91620f88d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
  *     RegionNetworkEndpointGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkEndpointGroupsSettings regionNetworkEndpointGroupsSettings =
  *     RegionNetworkEndpointGroupsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkEndpointGroupsSettings regionNetworkEndpointGroupsSettings =
  *     RegionNetworkEndpointGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
@@ -169,8 +178,11 @@ public RegionNetworkEndpointGroupsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -209,8 +221,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   DeleteRegionNetworkEndpointGroupRequest request =
@@ -242,8 +257,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   DeleteRegionNetworkEndpointGroupRequest request =
@@ -273,8 +291,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   DeleteRegionNetworkEndpointGroupRequest request =
@@ -303,8 +324,11 @@ public final UnaryCallable<DeleteRegionNetworkEndpointGroupRequest, Operation> d
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -341,8 +365,11 @@ public final NetworkEndpointGroup get(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   GetRegionNetworkEndpointGroupRequest request =
@@ -370,8 +397,11 @@ public final NetworkEndpointGroup get(GetRegionNetworkEndpointGroupRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   GetRegionNetworkEndpointGroupRequest request =
@@ -400,8 +430,11 @@ public final NetworkEndpointGroup get(GetRegionNetworkEndpointGroupRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -439,8 +472,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   InsertRegionNetworkEndpointGroupRequest request =
@@ -472,8 +508,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   InsertRegionNetworkEndpointGroupRequest request =
@@ -503,8 +542,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   InsertRegionNetworkEndpointGroupRequest request =
@@ -533,8 +575,11 @@ public final UnaryCallable<InsertRegionNetworkEndpointGroupRequest, Operation> i
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   String project = "project-309310695";
@@ -568,8 +613,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   ListRegionNetworkEndpointGroupsRequest request =
@@ -604,8 +652,11 @@ public final ListPagedResponse list(ListRegionNetworkEndpointGroupsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   ListRegionNetworkEndpointGroupsRequest request =
@@ -640,8 +691,11 @@ public final ListPagedResponse list(ListRegionNetworkEndpointGroupsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
    *     RegionNetworkEndpointGroupsClient.create()) {
    *   ListRegionNetworkEndpointGroupsRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsSettings.java
index ea0fd1188..5cefd4f15 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkEndpointGroupsSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkEndpointGroupsSettings.Builder regionNetworkEndpointGroupsSettingsBuilder =
  *     RegionNetworkEndpointGroupsSettings.newBuilder();
  * regionNetworkEndpointGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionNetworkEndpointGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionNetworkEndpointGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionNetworkEndpointGroupsSettings regionNetworkEndpointGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesClient.java
index 36195e6d7..74380028f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
  *     RegionNetworkFirewallPoliciesClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkFirewallPoliciesSettings regionNetworkFirewallPoliciesSettings =
  *     RegionNetworkFirewallPoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkFirewallPoliciesSettings regionNetworkFirewallPoliciesSettings =
  *     RegionNetworkFirewallPoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
@@ -169,8 +178,11 @@ public RegionNetworkFirewallPoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -214,8 +226,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   AddAssociationRegionNetworkFirewallPolicyRequest request =
@@ -248,8 +263,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   AddAssociationRegionNetworkFirewallPolicyRequest request =
@@ -281,8 +299,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   AddAssociationRegionNetworkFirewallPolicyRequest request =
@@ -313,8 +334,11 @@ public final OperationFuture<Operation, Operation> addAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -356,8 +380,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   AddRuleRegionNetworkFirewallPolicyRequest request =
@@ -391,8 +418,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   AddRuleRegionNetworkFirewallPolicyRequest request =
@@ -424,8 +454,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   AddRuleRegionNetworkFirewallPolicyRequest request =
@@ -457,8 +490,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -494,8 +530,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   CloneRulesRegionNetworkFirewallPolicyRequest request =
@@ -527,8 +566,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   CloneRulesRegionNetworkFirewallPolicyRequest request =
@@ -558,8 +600,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   CloneRulesRegionNetworkFirewallPolicyRequest request =
@@ -589,8 +634,11 @@ public final OperationFuture<Operation, Operation> cloneRulesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -624,8 +672,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   DeleteRegionNetworkFirewallPolicyRequest request =
@@ -656,8 +707,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   DeleteRegionNetworkFirewallPolicyRequest request =
@@ -686,8 +740,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   DeleteRegionNetworkFirewallPolicyRequest request =
@@ -715,8 +772,11 @@ public final UnaryCallable<DeleteRegionNetworkFirewallPolicyRequest, Operation>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -749,8 +809,11 @@ public final FirewallPolicy get(String project, String region, String firewallPo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetRegionNetworkFirewallPolicyRequest request =
@@ -777,8 +840,11 @@ public final FirewallPolicy get(GetRegionNetworkFirewallPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetRegionNetworkFirewallPolicyRequest request =
@@ -805,8 +871,11 @@ public final UnaryCallable<GetRegionNetworkFirewallPolicyRequest, FirewallPolicy
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -840,8 +909,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetAssociationRegionNetworkFirewallPolicyRequest request =
@@ -871,8 +943,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetAssociationRegionNetworkFirewallPolicyRequest request =
@@ -902,8 +977,11 @@ public final FirewallPolicyAssociation getAssociation(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -937,8 +1015,11 @@ public final RegionNetworkFirewallPoliciesGetEffectiveFirewallsResponse getEffec
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetEffectiveFirewallsRegionNetworkFirewallPolicyRequest request =
@@ -967,8 +1048,11 @@ public final RegionNetworkFirewallPoliciesGetEffectiveFirewallsResponse getEffec
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetEffectiveFirewallsRegionNetworkFirewallPolicyRequest request =
@@ -999,8 +1083,11 @@ public final RegionNetworkFirewallPoliciesGetEffectiveFirewallsResponse getEffec
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1033,8 +1120,11 @@ public final Policy getIamPolicy(String project, String region, String resource)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetIamPolicyRegionNetworkFirewallPolicyRequest request =
@@ -1063,8 +1153,11 @@ public final Policy getIamPolicy(GetIamPolicyRegionNetworkFirewallPolicyRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetIamPolicyRegionNetworkFirewallPolicyRequest request =
@@ -1093,8 +1186,11 @@ public final Policy getIamPolicy(GetIamPolicyRegionNetworkFirewallPolicyRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1127,8 +1223,11 @@ public final FirewallPolicyRule getRule(String project, String region, String fi
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetRuleRegionNetworkFirewallPolicyRequest request =
@@ -1156,8 +1255,11 @@ public final FirewallPolicyRule getRule(GetRuleRegionNetworkFirewallPolicyReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   GetRuleRegionNetworkFirewallPolicyRequest request =
@@ -1186,8 +1288,11 @@ public final FirewallPolicyRule getRule(GetRuleRegionNetworkFirewallPolicyReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1223,8 +1328,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   InsertRegionNetworkFirewallPolicyRequest request =
@@ -1255,8 +1363,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   InsertRegionNetworkFirewallPolicyRequest request =
@@ -1285,8 +1396,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   InsertRegionNetworkFirewallPolicyRequest request =
@@ -1315,8 +1429,11 @@ public final UnaryCallable<InsertRegionNetworkFirewallPolicyRequest, Operation>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1349,8 +1466,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   ListRegionNetworkFirewallPoliciesRequest request =
@@ -1385,8 +1505,11 @@ public final ListPagedResponse list(ListRegionNetworkFirewallPoliciesRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   ListRegionNetworkFirewallPoliciesRequest request =
@@ -1421,8 +1544,11 @@ public final ListPagedResponse list(ListRegionNetworkFirewallPoliciesRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   ListRegionNetworkFirewallPoliciesRequest request =
@@ -1463,8 +1589,11 @@ public final ListPagedResponse list(ListRegionNetworkFirewallPoliciesRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1503,8 +1632,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   PatchRegionNetworkFirewallPolicyRequest request =
@@ -1536,8 +1668,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   PatchRegionNetworkFirewallPolicyRequest request =
@@ -1567,8 +1702,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   PatchRegionNetworkFirewallPolicyRequest request =
@@ -1597,8 +1735,11 @@ public final UnaryCallable<PatchRegionNetworkFirewallPolicyRequest, Operation> p
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1640,8 +1781,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   PatchRuleRegionNetworkFirewallPolicyRequest request =
@@ -1674,8 +1818,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   PatchRuleRegionNetworkFirewallPolicyRequest request =
@@ -1706,8 +1853,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   PatchRuleRegionNetworkFirewallPolicyRequest request =
@@ -1738,8 +1888,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1775,8 +1928,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   RemoveAssociationRegionNetworkFirewallPolicyRequest request =
@@ -1809,8 +1965,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   RemoveAssociationRegionNetworkFirewallPolicyRequest request =
@@ -1843,8 +2002,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   RemoveAssociationRegionNetworkFirewallPolicyRequest request =
@@ -1874,8 +2036,11 @@ public final OperationFuture<Operation, Operation> removeAssociationAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -1911,8 +2076,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   RemoveRuleRegionNetworkFirewallPolicyRequest request =
@@ -1944,8 +2112,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   RemoveRuleRegionNetworkFirewallPolicyRequest request =
@@ -1975,8 +2146,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   RemoveRuleRegionNetworkFirewallPolicyRequest request =
@@ -2006,8 +2180,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -2049,8 +2226,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   SetIamPolicyRegionNetworkFirewallPolicyRequest request =
@@ -2078,8 +2258,11 @@ public final Policy setIamPolicy(SetIamPolicyRegionNetworkFirewallPolicyRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   SetIamPolicyRegionNetworkFirewallPolicyRequest request =
@@ -2108,8 +2291,11 @@ public final Policy setIamPolicy(SetIamPolicyRegionNetworkFirewallPolicyRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -2151,8 +2337,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   TestIamPermissionsRegionNetworkFirewallPolicyRequest request =
@@ -2182,8 +2371,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
    *     RegionNetworkFirewallPoliciesClient.create()) {
    *   TestIamPermissionsRegionNetworkFirewallPolicyRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesSettings.java
index 8c84c1b1d..e6b3d7744 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNetworkFirewallPoliciesSettings.java
@@ -53,8 +53,11 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkFirewallPoliciesSettings.Builder regionNetworkFirewallPoliciesSettingsBuilder =
  *     RegionNetworkFirewallPoliciesSettings.newBuilder();
  * regionNetworkFirewallPoliciesSettingsBuilder
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsClient.java
index b535f1972..718bd656d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
  *     RegionNotificationEndpointsClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNotificationEndpointsSettings regionNotificationEndpointsSettings =
  *     RegionNotificationEndpointsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNotificationEndpointsSettings regionNotificationEndpointsSettings =
  *     RegionNotificationEndpointsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionNotificationEndpointsClient regionNotificationEndpointsClient =
@@ -168,8 +177,11 @@ public RegionNotificationEndpointsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   String project = "project-309310695";
@@ -205,8 +217,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   DeleteRegionNotificationEndpointRequest request =
@@ -237,8 +252,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   DeleteRegionNotificationEndpointRequest request =
@@ -267,8 +285,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   DeleteRegionNotificationEndpointRequest request =
@@ -296,8 +317,11 @@ public final UnaryCallable<DeleteRegionNotificationEndpointRequest, Operation> d
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   String project = "project-309310695";
@@ -331,8 +355,11 @@ public final NotificationEndpoint get(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   GetRegionNotificationEndpointRequest request =
@@ -359,8 +386,11 @@ public final NotificationEndpoint get(GetRegionNotificationEndpointRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   GetRegionNotificationEndpointRequest request =
@@ -389,8 +419,11 @@ public final NotificationEndpoint get(GetRegionNotificationEndpointRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   String project = "project-309310695";
@@ -427,8 +460,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   InsertRegionNotificationEndpointRequest request =
@@ -460,8 +496,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   InsertRegionNotificationEndpointRequest request =
@@ -491,8 +530,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   InsertRegionNotificationEndpointRequest request =
@@ -520,8 +562,11 @@ public final UnaryCallable<InsertRegionNotificationEndpointRequest, Operation> i
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   String project = "project-309310695";
@@ -553,8 +598,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   ListRegionNotificationEndpointsRequest request =
@@ -588,8 +636,11 @@ public final ListPagedResponse list(ListRegionNotificationEndpointsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   ListRegionNotificationEndpointsRequest request =
@@ -623,8 +674,11 @@ public final ListPagedResponse list(ListRegionNotificationEndpointsRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
    *     RegionNotificationEndpointsClient.create()) {
    *   ListRegionNotificationEndpointsRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsSettings.java
index ed1c87892..d75aaae95 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionNotificationEndpointsSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNotificationEndpointsSettings.Builder regionNotificationEndpointsSettingsBuilder =
  *     RegionNotificationEndpointsSettings.newBuilder();
  * regionNotificationEndpointsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionNotificationEndpointsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionNotificationEndpointsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionNotificationEndpointsSettings regionNotificationEndpointsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsClient.java
index d288e9660..acf20ddb4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionOperationsSettings regionOperationsSettings =
  *     RegionOperationsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionOperationsSettings regionOperationsSettings =
  *     RegionOperationsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionOperationsClient regionOperationsClient =
@@ -161,8 +170,11 @@ public RegionOperationsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -195,8 +207,11 @@ public final DeleteRegionOperationResponse delete(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   DeleteRegionOperationRequest request =
    *       DeleteRegionOperationRequest.newBuilder()
@@ -222,8 +237,11 @@ public final DeleteRegionOperationResponse delete(DeleteRegionOperationRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   DeleteRegionOperationRequest request =
    *       DeleteRegionOperationRequest.newBuilder()
@@ -250,8 +268,11 @@ public final DeleteRegionOperationResponse delete(DeleteRegionOperationRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -282,8 +303,11 @@ public final Operation get(String project, String region, String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   GetRegionOperationRequest request =
    *       GetRegionOperationRequest.newBuilder()
@@ -309,8 +333,11 @@ public final Operation get(GetRegionOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   GetRegionOperationRequest request =
    *       GetRegionOperationRequest.newBuilder()
@@ -335,8 +362,11 @@ public final UnaryCallable<GetRegionOperationRequest, Operation> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -363,8 +393,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   ListRegionOperationsRequest request =
    *       ListRegionOperationsRequest.newBuilder()
@@ -396,8 +429,11 @@ public final ListPagedResponse list(ListRegionOperationsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   ListRegionOperationsRequest request =
    *       ListRegionOperationsRequest.newBuilder()
@@ -428,8 +464,11 @@ public final UnaryCallable<ListRegionOperationsRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   ListRegionOperationsRequest request =
    *       ListRegionOperationsRequest.newBuilder()
@@ -475,8 +514,11 @@ public final UnaryCallable<ListRegionOperationsRequest, OperationList> listCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -515,8 +557,11 @@ public final Operation wait(String project, String region, String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   WaitRegionOperationRequest request =
    *       WaitRegionOperationRequest.newBuilder()
@@ -550,8 +595,11 @@ public final Operation wait(WaitRegionOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
    *   WaitRegionOperationRequest request =
    *       WaitRegionOperationRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsSettings.java
index fa72c28fe..162a9f3b7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionOperationsSettings.java
@@ -52,17 +52,17 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionOperationsSettings.Builder regionOperationsSettingsBuilder =
  *     RegionOperationsSettings.newBuilder();
  * regionOperationsSettingsBuilder
  *     .deleteSettings()
  *     .setRetrySettings(
- *         regionOperationsSettingsBuilder
- *             .deleteSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionOperationsSettingsBuilder.deleteSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionOperationsSettings regionOperationsSettings = regionOperationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesClient.java
index b3219243a..a48ffab5e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
  *     RegionSecurityPoliciesClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSecurityPoliciesSettings regionSecurityPoliciesSettings =
  *     RegionSecurityPoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSecurityPoliciesSettings regionSecurityPoliciesSettings =
  *     RegionSecurityPoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionSecurityPoliciesClient regionSecurityPoliciesClient =
@@ -165,8 +174,11 @@ public RegionSecurityPoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -200,8 +212,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   DeleteRegionSecurityPolicyRequest request =
@@ -232,8 +247,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   DeleteRegionSecurityPolicyRequest request =
@@ -262,8 +280,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   DeleteRegionSecurityPolicyRequest request =
@@ -291,8 +312,11 @@ public final UnaryCallable<DeleteRegionSecurityPolicyRequest, Operation> deleteC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -324,8 +348,11 @@ public final SecurityPolicy get(String project, String region, String securityPo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   GetRegionSecurityPolicyRequest request =
@@ -352,8 +379,11 @@ public final SecurityPolicy get(GetRegionSecurityPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   GetRegionSecurityPolicyRequest request =
@@ -380,8 +410,11 @@ public final UnaryCallable<GetRegionSecurityPolicyRequest, SecurityPolicy> getCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -415,8 +448,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   InsertRegionSecurityPolicyRequest request =
@@ -448,8 +484,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   InsertRegionSecurityPolicyRequest request =
@@ -479,8 +518,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   InsertRegionSecurityPolicyRequest request =
@@ -509,8 +551,11 @@ public final UnaryCallable<InsertRegionSecurityPolicyRequest, Operation> insertC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -542,8 +587,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   ListRegionSecurityPoliciesRequest request =
@@ -576,8 +624,11 @@ public final ListPagedResponse list(ListRegionSecurityPoliciesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   ListRegionSecurityPoliciesRequest request =
@@ -611,8 +662,11 @@ public final ListPagedResponse list(ListRegionSecurityPoliciesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   ListRegionSecurityPoliciesRequest request =
@@ -651,8 +705,11 @@ public final UnaryCallable<ListRegionSecurityPoliciesRequest, SecurityPolicyList
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
@@ -691,8 +748,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   PatchRegionSecurityPolicyRequest request =
@@ -724,8 +784,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   PatchRegionSecurityPolicyRequest request =
@@ -755,8 +818,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
    *     RegionSecurityPoliciesClient.create()) {
    *   PatchRegionSecurityPolicyRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesSettings.java
index 7137acc2a..2b69fd0b0 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSecurityPoliciesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSecurityPoliciesSettings.Builder regionSecurityPoliciesSettingsBuilder =
  *     RegionSecurityPoliciesSettings.newBuilder();
  * regionSecurityPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionSecurityPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionSecurityPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionSecurityPoliciesSettings regionSecurityPoliciesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesClient.java
index 06271b1e9..9bbd50947 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionSslCertificatesClient regionSslCertificatesClient =
  *     RegionSslCertificatesClient.create()) {
  *   String project = "project-309310695";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSslCertificatesSettings regionSslCertificatesSettings =
  *     RegionSslCertificatesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSslCertificatesSettings regionSslCertificatesSettings =
  *     RegionSslCertificatesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionSslCertificatesClient regionSslCertificatesClient =
@@ -164,8 +173,11 @@ public RegionSslCertificatesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   String project = "project-309310695";
@@ -199,8 +211,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   DeleteRegionSslCertificateRequest request =
@@ -231,8 +246,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   DeleteRegionSslCertificateRequest request =
@@ -261,8 +279,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   DeleteRegionSslCertificateRequest request =
@@ -291,8 +312,11 @@ public final UnaryCallable<DeleteRegionSslCertificateRequest, Operation> deleteC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   String project = "project-309310695";
@@ -325,8 +349,11 @@ public final SslCertificate get(String project, String region, String sslCertifi
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   GetRegionSslCertificateRequest request =
@@ -354,8 +381,11 @@ public final SslCertificate get(GetRegionSslCertificateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   GetRegionSslCertificateRequest request =
@@ -383,8 +413,11 @@ public final UnaryCallable<GetRegionSslCertificateRequest, SslCertificate> getCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   String project = "project-309310695";
@@ -419,8 +452,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   InsertRegionSslCertificateRequest request =
@@ -452,8 +488,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   InsertRegionSslCertificateRequest request =
@@ -483,8 +522,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   InsertRegionSslCertificateRequest request =
@@ -513,8 +555,11 @@ public final UnaryCallable<InsertRegionSslCertificateRequest, Operation> insertC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   String project = "project-309310695";
@@ -544,8 +589,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   ListRegionSslCertificatesRequest request =
@@ -579,8 +627,11 @@ public final ListPagedResponse list(ListRegionSslCertificatesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   ListRegionSslCertificatesRequest request =
@@ -615,8 +666,11 @@ public final ListPagedResponse list(ListRegionSslCertificatesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionSslCertificatesClient regionSslCertificatesClient =
    *     RegionSslCertificatesClient.create()) {
    *   ListRegionSslCertificatesRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesSettings.java
index 0b5dc107a..bb15460c9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionSslCertificatesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSslCertificatesSettings.Builder regionSslCertificatesSettingsBuilder =
  *     RegionSslCertificatesSettings.newBuilder();
  * regionSslCertificatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionSslCertificatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionSslCertificatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionSslCertificatesSettings regionSslCertificatesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesClient.java
index 3bdd9a273..b5a6154dc 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
  *     RegionTargetHttpProxiesClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpProxiesSettings regionTargetHttpProxiesSettings =
  *     RegionTargetHttpProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpProxiesSettings regionTargetHttpProxiesSettings =
  *     RegionTargetHttpProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
@@ -166,8 +175,11 @@ public RegionTargetHttpProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -201,8 +213,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   DeleteRegionTargetHttpProxyRequest request =
@@ -233,8 +248,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   DeleteRegionTargetHttpProxyRequest request =
@@ -263,8 +281,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   DeleteRegionTargetHttpProxyRequest request =
@@ -293,8 +314,11 @@ public final UnaryCallable<DeleteRegionTargetHttpProxyRequest, Operation> delete
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -328,8 +352,11 @@ public final TargetHttpProxy get(String project, String region, String targetHtt
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   GetRegionTargetHttpProxyRequest request =
@@ -357,8 +384,11 @@ public final TargetHttpProxy get(GetRegionTargetHttpProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   GetRegionTargetHttpProxyRequest request =
@@ -386,8 +416,11 @@ public final UnaryCallable<GetRegionTargetHttpProxyRequest, TargetHttpProxy> get
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -422,8 +455,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   InsertRegionTargetHttpProxyRequest request =
@@ -455,8 +491,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   InsertRegionTargetHttpProxyRequest request =
@@ -486,8 +525,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   InsertRegionTargetHttpProxyRequest request =
@@ -516,8 +558,11 @@ public final UnaryCallable<InsertRegionTargetHttpProxyRequest, Operation> insert
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -550,8 +595,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   ListRegionTargetHttpProxiesRequest request =
@@ -585,8 +633,11 @@ public final ListPagedResponse list(ListRegionTargetHttpProxiesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   ListRegionTargetHttpProxiesRequest request =
@@ -621,8 +672,11 @@ public final ListPagedResponse list(ListRegionTargetHttpProxiesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   ListRegionTargetHttpProxiesRequest request =
@@ -662,8 +716,11 @@ public final ListPagedResponse list(ListRegionTargetHttpProxiesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -705,8 +762,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   SetUrlMapRegionTargetHttpProxyRequest request =
@@ -738,8 +798,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   SetUrlMapRegionTargetHttpProxyRequest request =
@@ -769,8 +832,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
    *     RegionTargetHttpProxiesClient.create()) {
    *   SetUrlMapRegionTargetHttpProxyRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesSettings.java
index 600c5fa49..8d6783774 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpProxiesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpProxiesSettings.Builder regionTargetHttpProxiesSettingsBuilder =
  *     RegionTargetHttpProxiesSettings.newBuilder();
  * regionTargetHttpProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionTargetHttpProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionTargetHttpProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionTargetHttpProxiesSettings regionTargetHttpProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesClient.java
index efeebd039..0259d5549 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
  *     RegionTargetHttpsProxiesClient.create()) {
  *   String project = "project-309310695";
@@ -85,8 +88,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpsProxiesSettings regionTargetHttpsProxiesSettings =
  *     RegionTargetHttpsProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -98,8 +104,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpsProxiesSettings regionTargetHttpsProxiesSettings =
  *     RegionTargetHttpsProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
@@ -167,8 +176,11 @@ public RegionTargetHttpsProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -202,8 +214,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   DeleteRegionTargetHttpsProxyRequest request =
@@ -234,8 +249,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   DeleteRegionTargetHttpsProxyRequest request =
@@ -264,8 +282,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   DeleteRegionTargetHttpsProxyRequest request =
@@ -294,8 +315,11 @@ public final UnaryCallable<DeleteRegionTargetHttpsProxyRequest, Operation> delet
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -329,8 +353,11 @@ public final TargetHttpsProxy get(String project, String region, String targetHt
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   GetRegionTargetHttpsProxyRequest request =
@@ -358,8 +385,11 @@ public final TargetHttpsProxy get(GetRegionTargetHttpsProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   GetRegionTargetHttpsProxyRequest request =
@@ -387,8 +417,11 @@ public final UnaryCallable<GetRegionTargetHttpsProxyRequest, TargetHttpsProxy> g
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -425,8 +458,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   InsertRegionTargetHttpsProxyRequest request =
@@ -458,8 +494,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   InsertRegionTargetHttpsProxyRequest request =
@@ -489,8 +528,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   InsertRegionTargetHttpsProxyRequest request =
@@ -519,8 +561,11 @@ public final UnaryCallable<InsertRegionTargetHttpsProxyRequest, Operation> inser
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -553,8 +598,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   ListRegionTargetHttpsProxiesRequest request =
@@ -588,8 +636,11 @@ public final ListPagedResponse list(ListRegionTargetHttpsProxiesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   ListRegionTargetHttpsProxiesRequest request =
@@ -624,8 +675,11 @@ public final ListPagedResponse list(ListRegionTargetHttpsProxiesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   ListRegionTargetHttpsProxiesRequest request =
@@ -666,8 +720,11 @@ public final ListPagedResponse list(ListRegionTargetHttpsProxiesRequest request)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -710,8 +767,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   PatchRegionTargetHttpsProxyRequest request =
@@ -744,8 +804,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   PatchRegionTargetHttpsProxyRequest request =
@@ -776,8 +839,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   PatchRegionTargetHttpsProxyRequest request =
@@ -806,8 +872,11 @@ public final UnaryCallable<PatchRegionTargetHttpsProxyRequest, Operation> patchC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -859,8 +928,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   SetSslCertificatesRegionTargetHttpsProxyRequest request =
@@ -893,8 +965,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   SetSslCertificatesRegionTargetHttpsProxyRequest request =
@@ -926,8 +1001,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   SetSslCertificatesRegionTargetHttpsProxyRequest request =
@@ -958,8 +1036,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
@@ -1001,8 +1082,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   SetUrlMapRegionTargetHttpsProxyRequest request =
@@ -1034,8 +1118,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   SetUrlMapRegionTargetHttpsProxyRequest request =
@@ -1065,8 +1152,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
    *     RegionTargetHttpsProxiesClient.create()) {
    *   SetUrlMapRegionTargetHttpsProxyRequest request =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesSettings.java
index 95ecfd0be..49d660425 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionTargetHttpsProxiesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpsProxiesSettings.Builder regionTargetHttpsProxiesSettingsBuilder =
  *     RegionTargetHttpsProxiesSettings.newBuilder();
  * regionTargetHttpsProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionTargetHttpsProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionTargetHttpsProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionTargetHttpsProxiesSettings regionTargetHttpsProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsClient.java
index 3dd5ff2f7..58d0fc52b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionUrlMapsSettings regionUrlMapsSettings =
  *     RegionUrlMapsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionUrlMapsSettings regionUrlMapsSettings =
  *     RegionUrlMapsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create(regionUrlMapsSettings);
@@ -160,8 +169,11 @@ public RegionUrlMapsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -193,8 +205,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   DeleteRegionUrlMapRequest request =
    *       DeleteRegionUrlMapRequest.newBuilder()
@@ -224,8 +239,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   DeleteRegionUrlMapRequest request =
    *       DeleteRegionUrlMapRequest.newBuilder()
@@ -253,8 +271,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   DeleteRegionUrlMapRequest request =
    *       DeleteRegionUrlMapRequest.newBuilder()
@@ -281,8 +302,11 @@ public final UnaryCallable<DeleteRegionUrlMapRequest, Operation> deleteCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -314,8 +338,11 @@ public final UrlMap get(String project, String region, String urlMap) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   GetRegionUrlMapRequest request =
    *       GetRegionUrlMapRequest.newBuilder()
@@ -342,8 +369,11 @@ public final UrlMap get(GetRegionUrlMapRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   GetRegionUrlMapRequest request =
    *       GetRegionUrlMapRequest.newBuilder()
@@ -368,8 +398,11 @@ public final UnaryCallable<GetRegionUrlMapRequest, UrlMap> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -401,8 +434,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   InsertRegionUrlMapRequest request =
    *       InsertRegionUrlMapRequest.newBuilder()
@@ -432,8 +468,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   InsertRegionUrlMapRequest request =
    *       InsertRegionUrlMapRequest.newBuilder()
@@ -461,8 +500,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   InsertRegionUrlMapRequest request =
    *       InsertRegionUrlMapRequest.newBuilder()
@@ -489,8 +531,11 @@ public final UnaryCallable<InsertRegionUrlMapRequest, Operation> insertCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -518,8 +563,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   ListRegionUrlMapsRequest request =
    *       ListRegionUrlMapsRequest.newBuilder()
@@ -552,8 +600,11 @@ public final ListPagedResponse list(ListRegionUrlMapsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   ListRegionUrlMapsRequest request =
    *       ListRegionUrlMapsRequest.newBuilder()
@@ -585,8 +636,11 @@ public final UnaryCallable<ListRegionUrlMapsRequest, ListPagedResponse> listPage
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   ListRegionUrlMapsRequest request =
    *       ListRegionUrlMapsRequest.newBuilder()
@@ -625,8 +679,11 @@ public final UnaryCallable<ListRegionUrlMapsRequest, UrlMapList> listCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -663,8 +720,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   PatchRegionUrlMapRequest request =
    *       PatchRegionUrlMapRequest.newBuilder()
@@ -695,8 +755,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchRegionUrlMapR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   PatchRegionUrlMapRequest request =
    *       PatchRegionUrlMapRequest.newBuilder()
@@ -726,8 +789,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchRegionUrlMapR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   PatchRegionUrlMapRequest request =
    *       PatchRegionUrlMapRequest.newBuilder()
@@ -754,8 +820,11 @@ public final UnaryCallable<PatchRegionUrlMapRequest, Operation> patchCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -791,8 +860,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   UpdateRegionUrlMapRequest request =
    *       UpdateRegionUrlMapRequest.newBuilder()
@@ -823,8 +895,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   UpdateRegionUrlMapRequest request =
    *       UpdateRegionUrlMapRequest.newBuilder()
@@ -853,8 +928,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   UpdateRegionUrlMapRequest request =
    *       UpdateRegionUrlMapRequest.newBuilder()
@@ -882,8 +960,11 @@ public final UnaryCallable<UpdateRegionUrlMapRequest, Operation> updateCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -925,8 +1006,11 @@ public final UrlMapsValidateResponse validate(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   ValidateRegionUrlMapRequest request =
    *       ValidateRegionUrlMapRequest.newBuilder()
@@ -955,8 +1039,11 @@ public final UrlMapsValidateResponse validate(ValidateRegionUrlMapRequest reques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
    *   ValidateRegionUrlMapRequest request =
    *       ValidateRegionUrlMapRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsSettings.java
index d569dc520..df0317f02 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionUrlMapsSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionUrlMapsSettings.Builder regionUrlMapsSettingsBuilder = RegionUrlMapsSettings.newBuilder();
  * regionUrlMapsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionUrlMapsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionUrlMapsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionUrlMapsSettings regionUrlMapsSettings = regionUrlMapsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsClient.java
index 74782a851..f2cc16707 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionsClient regionsClient = RegionsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -78,8 +81,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionsSettings regionsSettings =
  *     RegionsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -90,8 +96,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionsSettings regionsSettings = RegionsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RegionsClient regionsClient = RegionsClient.create(regionsSettings);
  * }</pre>
@@ -158,8 +167,11 @@ public RegionsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -189,8 +201,11 @@ public final Region get(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   GetRegionRequest request =
    *       GetRegionRequest.newBuilder()
@@ -220,8 +235,11 @@ public final Region get(GetRegionRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   GetRegionRequest request =
    *       GetRegionRequest.newBuilder()
@@ -250,8 +268,11 @@ public final UnaryCallable<GetRegionRequest, Region> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   String project = "project-309310695";
    *   for (Region element : regionsClient.list(project).iterateAll()) {
@@ -280,8 +301,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   ListRegionsRequest request =
    *       ListRegionsRequest.newBuilder()
@@ -317,8 +341,11 @@ public final ListPagedResponse list(ListRegionsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   ListRegionsRequest request =
    *       ListRegionsRequest.newBuilder()
@@ -353,8 +380,11 @@ public final UnaryCallable<ListRegionsRequest, ListPagedResponse> listPagedCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RegionsClient regionsClient = RegionsClient.create()) {
    *   ListRegionsRequest request =
    *       ListRegionsRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsSettings.java
index 6a0c51c3f..0214d4c0a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RegionsSettings.java
@@ -52,16 +52,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionsSettings.Builder regionsSettingsBuilder = RegionsSettings.newBuilder();
  * regionsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionsSettings regionsSettings = regionsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsClient.java
index c08f4c7ed..1774bc60b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ReservationsSettings reservationsSettings =
  *     ReservationsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ReservationsSettings reservationsSettings =
  *     ReservationsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ReservationsClient reservationsClient = ReservationsClient.create(reservationsSettings);
@@ -160,8 +169,11 @@ public ReservationsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, ReservationsScopedList> element :
@@ -187,8 +199,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   AggregatedListReservationsRequest request =
    *       AggregatedListReservationsRequest.newBuilder()
@@ -222,8 +237,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   AggregatedListReservationsRequest request =
    *       AggregatedListReservationsRequest.newBuilder()
@@ -256,8 +274,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   AggregatedListReservationsRequest request =
    *       AggregatedListReservationsRequest.newBuilder()
@@ -297,8 +318,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -330,8 +354,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   DeleteReservationRequest request =
    *       DeleteReservationRequest.newBuilder()
@@ -360,8 +387,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   DeleteReservationRequest request =
    *       DeleteReservationRequest.newBuilder()
@@ -389,8 +419,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   DeleteReservationRequest request =
    *       DeleteReservationRequest.newBuilder()
@@ -416,8 +449,11 @@ public final UnaryCallable<DeleteReservationRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -448,8 +484,11 @@ public final Reservation get(String project, String zone, String reservation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   GetReservationRequest request =
    *       GetReservationRequest.newBuilder()
@@ -475,8 +514,11 @@ public final Reservation get(GetReservationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   GetReservationRequest request =
    *       GetReservationRequest.newBuilder()
@@ -502,8 +544,11 @@ public final UnaryCallable<GetReservationRequest, Reservation> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -535,8 +580,11 @@ public final Policy getIamPolicy(String project, String zone, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   GetIamPolicyReservationRequest request =
    *       GetIamPolicyReservationRequest.newBuilder()
@@ -564,8 +612,11 @@ public final Policy getIamPolicy(GetIamPolicyReservationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   GetIamPolicyReservationRequest request =
    *       GetIamPolicyReservationRequest.newBuilder()
@@ -591,8 +642,11 @@ public final UnaryCallable<GetIamPolicyReservationRequest, Policy> getIamPolicyC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -624,8 +678,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   InsertReservationRequest request =
    *       InsertReservationRequest.newBuilder()
@@ -654,8 +711,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   InsertReservationRequest request =
    *       InsertReservationRequest.newBuilder()
@@ -683,8 +743,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   InsertReservationRequest request =
    *       InsertReservationRequest.newBuilder()
@@ -711,8 +774,11 @@ public final UnaryCallable<InsertReservationRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -740,8 +806,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   ListReservationsRequest request =
    *       ListReservationsRequest.newBuilder()
@@ -774,8 +843,11 @@ public final ListPagedResponse list(ListReservationsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   ListReservationsRequest request =
    *       ListReservationsRequest.newBuilder()
@@ -807,8 +879,11 @@ public final UnaryCallable<ListReservationsRequest, ListPagedResponse> listPaged
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   ListReservationsRequest request =
    *       ListReservationsRequest.newBuilder()
@@ -847,8 +922,11 @@ public final UnaryCallable<ListReservationsRequest, ReservationList> listCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -891,8 +969,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   ResizeReservationRequest request =
    *       ResizeReservationRequest.newBuilder()
@@ -923,8 +1004,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(ResizeReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   ResizeReservationRequest request =
    *       ResizeReservationRequest.newBuilder()
@@ -954,8 +1038,11 @@ public final OperationFuture<Operation, Operation> resizeAsync(ResizeReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   ResizeReservationRequest request =
    *       ResizeReservationRequest.newBuilder()
@@ -982,8 +1069,11 @@ public final UnaryCallable<ResizeReservationRequest, Operation> resizeCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1022,8 +1112,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   SetIamPolicyReservationRequest request =
    *       SetIamPolicyReservationRequest.newBuilder()
@@ -1050,8 +1143,11 @@ public final Policy setIamPolicy(SetIamPolicyReservationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   SetIamPolicyReservationRequest request =
    *       SetIamPolicyReservationRequest.newBuilder()
@@ -1077,8 +1173,11 @@ public final UnaryCallable<SetIamPolicyReservationRequest, Policy> setIamPolicyC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1119,8 +1218,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   TestIamPermissionsReservationRequest request =
    *       TestIamPermissionsReservationRequest.newBuilder()
@@ -1148,8 +1250,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   TestIamPermissionsReservationRequest request =
    *       TestIamPermissionsReservationRequest.newBuilder()
@@ -1177,8 +1282,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -1214,8 +1322,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   UpdateReservationRequest request =
    *       UpdateReservationRequest.newBuilder()
@@ -1247,8 +1358,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   UpdateReservationRequest request =
    *       UpdateReservationRequest.newBuilder()
@@ -1279,8 +1393,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateReservation
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
    *   UpdateReservationRequest request =
    *       UpdateReservationRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsSettings.java
index 7a4d8d9a8..7b5882d0f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ReservationsSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ReservationsSettings.Builder reservationsSettingsBuilder = ReservationsSettings.newBuilder();
  * reservationsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         reservationsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         reservationsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ReservationsSettings reservationsSettings = reservationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesClient.java
index 784d2c2b9..f7724f435 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ResourcePoliciesSettings resourcePoliciesSettings =
  *     ResourcePoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ResourcePoliciesSettings resourcePoliciesSettings =
  *     ResourcePoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ResourcePoliciesClient resourcePoliciesClient =
@@ -164,8 +173,11 @@ public ResourcePoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, ResourcePoliciesScopedList> element :
@@ -191,8 +203,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   AggregatedListResourcePoliciesRequest request =
    *       AggregatedListResourcePoliciesRequest.newBuilder()
@@ -226,8 +241,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   AggregatedListResourcePoliciesRequest request =
    *       AggregatedListResourcePoliciesRequest.newBuilder()
@@ -260,8 +278,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   AggregatedListResourcePoliciesRequest request =
    *       AggregatedListResourcePoliciesRequest.newBuilder()
@@ -301,8 +322,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -335,8 +359,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   DeleteResourcePolicyRequest request =
    *       DeleteResourcePolicyRequest.newBuilder()
@@ -366,8 +393,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   DeleteResourcePolicyRequest request =
    *       DeleteResourcePolicyRequest.newBuilder()
@@ -395,8 +425,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   DeleteResourcePolicyRequest request =
    *       DeleteResourcePolicyRequest.newBuilder()
@@ -422,8 +455,11 @@ public final UnaryCallable<DeleteResourcePolicyRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -454,8 +490,11 @@ public final ResourcePolicy get(String project, String region, String resourcePo
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   GetResourcePolicyRequest request =
    *       GetResourcePolicyRequest.newBuilder()
@@ -481,8 +520,11 @@ public final ResourcePolicy get(GetResourcePolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   GetResourcePolicyRequest request =
    *       GetResourcePolicyRequest.newBuilder()
@@ -508,8 +550,11 @@ public final UnaryCallable<GetResourcePolicyRequest, ResourcePolicy> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -541,8 +586,11 @@ public final Policy getIamPolicy(String project, String region, String resource)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   GetIamPolicyResourcePolicyRequest request =
    *       GetIamPolicyResourcePolicyRequest.newBuilder()
@@ -570,8 +618,11 @@ public final Policy getIamPolicy(GetIamPolicyResourcePolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   GetIamPolicyResourcePolicyRequest request =
    *       GetIamPolicyResourcePolicyRequest.newBuilder()
@@ -597,8 +648,11 @@ public final UnaryCallable<GetIamPolicyResourcePolicyRequest, Policy> getIamPoli
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -631,8 +685,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   InsertResourcePolicyRequest request =
    *       InsertResourcePolicyRequest.newBuilder()
@@ -662,8 +719,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   InsertResourcePolicyRequest request =
    *       InsertResourcePolicyRequest.newBuilder()
@@ -691,8 +751,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   InsertResourcePolicyRequest request =
    *       InsertResourcePolicyRequest.newBuilder()
@@ -719,8 +782,11 @@ public final UnaryCallable<InsertResourcePolicyRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -748,8 +814,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   ListResourcePoliciesRequest request =
    *       ListResourcePoliciesRequest.newBuilder()
@@ -782,8 +851,11 @@ public final ListPagedResponse list(ListResourcePoliciesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   ListResourcePoliciesRequest request =
    *       ListResourcePoliciesRequest.newBuilder()
@@ -816,8 +888,11 @@ public final UnaryCallable<ListResourcePoliciesRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   ListResourcePoliciesRequest request =
    *       ListResourcePoliciesRequest.newBuilder()
@@ -855,8 +930,11 @@ public final UnaryCallable<ListResourcePoliciesRequest, ResourcePolicyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -897,8 +975,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   SetIamPolicyResourcePolicyRequest request =
    *       SetIamPolicyResourcePolicyRequest.newBuilder()
@@ -925,8 +1006,11 @@ public final Policy setIamPolicy(SetIamPolicyResourcePolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   SetIamPolicyResourcePolicyRequest request =
    *       SetIamPolicyResourcePolicyRequest.newBuilder()
@@ -952,8 +1036,11 @@ public final UnaryCallable<SetIamPolicyResourcePolicyRequest, Policy> setIamPoli
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -994,8 +1081,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   TestIamPermissionsResourcePolicyRequest request =
    *       TestIamPermissionsResourcePolicyRequest.newBuilder()
@@ -1023,8 +1113,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
    *   TestIamPermissionsResourcePolicyRequest request =
    *       TestIamPermissionsResourcePolicyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesSettings.java
index a4a9adcb3..8471d886a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ResourcePoliciesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ResourcePoliciesSettings.Builder resourcePoliciesSettingsBuilder =
  *     ResourcePoliciesSettings.newBuilder();
  * resourcePoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         resourcePoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         resourcePoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ResourcePoliciesSettings resourcePoliciesSettings = resourcePoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersClient.java
index a5b004bcd..0a5993384 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RoutersClient routersClient = RoutersClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutersSettings routersSettings =
  *     RoutersSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutersSettings routersSettings = RoutersSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RoutersClient routersClient = RoutersClient.create(routersSettings);
  * }</pre>
@@ -158,8 +167,11 @@ public RoutersStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, RoutersScopedList> element :
@@ -185,8 +197,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   AggregatedListRoutersRequest request =
    *       AggregatedListRoutersRequest.newBuilder()
@@ -219,8 +234,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListRoutersReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   AggregatedListRoutersRequest request =
    *       AggregatedListRoutersRequest.newBuilder()
@@ -253,8 +271,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListRoutersReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   AggregatedListRoutersRequest request =
    *       AggregatedListRoutersRequest.newBuilder()
@@ -293,8 +314,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListRoutersReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -326,8 +350,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   DeleteRouterRequest request =
    *       DeleteRouterRequest.newBuilder()
@@ -356,8 +383,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteRouterReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   DeleteRouterRequest request =
    *       DeleteRouterRequest.newBuilder()
@@ -385,8 +415,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteRouterReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   DeleteRouterRequest request =
    *       DeleteRouterRequest.newBuilder()
@@ -413,8 +446,11 @@ public final UnaryCallable<DeleteRouterRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -446,8 +482,11 @@ public final Router get(String project, String region, String router) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetRouterRequest request =
    *       GetRouterRequest.newBuilder()
@@ -474,8 +513,11 @@ public final Router get(GetRouterRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetRouterRequest request =
    *       GetRouterRequest.newBuilder()
@@ -500,8 +542,11 @@ public final UnaryCallable<GetRouterRequest, Router> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -536,8 +581,11 @@ public final GetNatMappingInfoPagedResponse getNatMappingInfo(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetNatMappingInfoRoutersRequest request =
    *       GetNatMappingInfoRoutersRequest.newBuilder()
@@ -571,8 +619,11 @@ public final GetNatMappingInfoPagedResponse getNatMappingInfo(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetNatMappingInfoRoutersRequest request =
    *       GetNatMappingInfoRoutersRequest.newBuilder()
@@ -606,8 +657,11 @@ public final GetNatMappingInfoPagedResponse getNatMappingInfo(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetNatMappingInfoRoutersRequest request =
    *       GetNatMappingInfoRoutersRequest.newBuilder()
@@ -648,8 +702,11 @@ public final GetNatMappingInfoPagedResponse getNatMappingInfo(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -680,8 +737,11 @@ public final RouterStatusResponse getRouterStatus(String project, String region,
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetRouterStatusRouterRequest request =
    *       GetRouterStatusRouterRequest.newBuilder()
@@ -707,8 +767,11 @@ public final RouterStatusResponse getRouterStatus(GetRouterStatusRouterRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   GetRouterStatusRouterRequest request =
    *       GetRouterStatusRouterRequest.newBuilder()
@@ -736,8 +799,11 @@ public final RouterStatusResponse getRouterStatus(GetRouterStatusRouterRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -770,8 +836,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   InsertRouterRequest request =
    *       InsertRouterRequest.newBuilder()
@@ -801,8 +870,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertRouterReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   InsertRouterRequest request =
    *       InsertRouterRequest.newBuilder()
@@ -831,8 +903,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertRouterReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   InsertRouterRequest request =
    *       InsertRouterRequest.newBuilder()
@@ -858,8 +933,11 @@ public final UnaryCallable<InsertRouterRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -886,8 +964,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   ListRoutersRequest request =
    *       ListRoutersRequest.newBuilder()
@@ -919,8 +1000,11 @@ public final ListPagedResponse list(ListRoutersRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   ListRoutersRequest request =
    *       ListRoutersRequest.newBuilder()
@@ -951,8 +1035,11 @@ public final UnaryCallable<ListRoutersRequest, ListPagedResponse> listPagedCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   ListRoutersRequest request =
    *       ListRoutersRequest.newBuilder()
@@ -991,8 +1078,11 @@ public final UnaryCallable<ListRoutersRequest, RouterList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1028,8 +1118,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   PatchRouterRequest request =
    *       PatchRouterRequest.newBuilder()
@@ -1060,8 +1153,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchRouterRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   PatchRouterRequest request =
    *       PatchRouterRequest.newBuilder()
@@ -1091,8 +1187,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchRouterRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   PatchRouterRequest request =
    *       PatchRouterRequest.newBuilder()
@@ -1120,8 +1219,11 @@ public final UnaryCallable<PatchRouterRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1158,8 +1260,11 @@ public final RoutersPreviewResponse preview(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   PreviewRouterRequest request =
    *       PreviewRouterRequest.newBuilder()
@@ -1187,8 +1292,11 @@ public final RoutersPreviewResponse preview(PreviewRouterRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   PreviewRouterRequest request =
    *       PreviewRouterRequest.newBuilder()
@@ -1217,8 +1325,11 @@ public final UnaryCallable<PreviewRouterRequest, RoutersPreviewResponse> preview
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1255,8 +1366,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   UpdateRouterRequest request =
    *       UpdateRouterRequest.newBuilder()
@@ -1288,8 +1402,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateRouterReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   UpdateRouterRequest request =
    *       UpdateRouterRequest.newBuilder()
@@ -1320,8 +1437,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateRouterReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutersClient routersClient = RoutersClient.create()) {
    *   UpdateRouterRequest request =
    *       UpdateRouterRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersSettings.java
index 63ebf181a..a6bb45aca 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutersSettings.java
@@ -55,16 +55,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutersSettings.Builder routersSettingsBuilder = RoutersSettings.newBuilder();
  * routersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         routersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         routersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RoutersSettings routersSettings = routersSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesClient.java
index cb6303585..c3550e024 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RoutesClient routesClient = RoutesClient.create()) {
  *   String project = "project-309310695";
  *   String route = "route108704329";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutesSettings routesSettings =
  *     RoutesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutesSettings routesSettings = RoutesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * RoutesClient routesClient = RoutesClient.create(routesSettings);
  * }</pre>
@@ -156,8 +165,11 @@ public RoutesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   String project = "project-309310695";
    *   String route = "route108704329";
@@ -182,8 +194,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   DeleteRouteRequest request =
    *       DeleteRouteRequest.newBuilder()
@@ -211,8 +226,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteRouteReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   DeleteRouteRequest request =
    *       DeleteRouteRequest.newBuilder()
@@ -239,8 +257,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteRouteReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   DeleteRouteRequest request =
    *       DeleteRouteRequest.newBuilder()
@@ -266,8 +287,11 @@ public final UnaryCallable<DeleteRouteRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   String project = "project-309310695";
    *   String route = "route108704329";
@@ -293,8 +317,11 @@ public final Route get(String project, String route) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   GetRouteRequest request =
    *       GetRouteRequest.newBuilder()
@@ -320,8 +347,11 @@ public final Route get(GetRouteRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   GetRouteRequest request =
    *       GetRouteRequest.newBuilder()
@@ -345,8 +375,11 @@ public final UnaryCallable<GetRouteRequest, Route> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   String project = "project-309310695";
    *   Route routeResource = Route.newBuilder().build();
@@ -372,8 +405,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   InsertRouteRequest request =
    *       InsertRouteRequest.newBuilder()
@@ -401,8 +437,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertRouteReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   InsertRouteRequest request =
    *       InsertRouteRequest.newBuilder()
@@ -429,8 +468,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertRouteReques
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   InsertRouteRequest request =
    *       InsertRouteRequest.newBuilder()
@@ -455,8 +497,11 @@ public final UnaryCallable<InsertRouteRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   String project = "project-309310695";
    *   for (Route element : routesClient.list(project).iterateAll()) {
@@ -480,8 +525,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   ListRoutesRequest request =
    *       ListRoutesRequest.newBuilder()
@@ -512,8 +560,11 @@ public final ListPagedResponse list(ListRoutesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   ListRoutesRequest request =
    *       ListRoutesRequest.newBuilder()
@@ -543,8 +594,11 @@ public final UnaryCallable<ListRoutesRequest, ListPagedResponse> listPagedCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (RoutesClient routesClient = RoutesClient.create()) {
    *   ListRoutesRequest request =
    *       ListRoutesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesSettings.java
index 16a94eafa..01fe84ba6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/RoutesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutesSettings.Builder routesSettingsBuilder = RoutesSettings.newBuilder();
  * routesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         routesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         routesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RoutesSettings routesSettings = routesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesClient.java
index 541aa1c6c..99b487172 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
  *   String project = "project-309310695";
  *   String securityPolicy = "securityPolicy-788621166";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SecurityPoliciesSettings securityPoliciesSettings =
  *     SecurityPoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SecurityPoliciesSettings securityPoliciesSettings =
  *     SecurityPoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * SecurityPoliciesClient securityPoliciesClient =
@@ -163,8 +172,11 @@ public SecurityPoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -199,8 +211,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   AddRuleSecurityPolicyRequest request =
    *       AddRuleSecurityPolicyRequest.newBuilder()
@@ -230,8 +245,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   AddRuleSecurityPolicyRequest request =
    *       AddRuleSecurityPolicyRequest.newBuilder()
@@ -259,8 +277,11 @@ public final OperationFuture<Operation, Operation> addRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   AddRuleSecurityPolicyRequest request =
    *       AddRuleSecurityPolicyRequest.newBuilder()
@@ -287,8 +308,11 @@ public final UnaryCallable<AddRuleSecurityPolicyRequest, Operation> addRuleCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, SecurityPoliciesScopedList> element :
@@ -315,8 +339,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   AggregatedListSecurityPoliciesRequest request =
    *       AggregatedListSecurityPoliciesRequest.newBuilder()
@@ -351,8 +378,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   AggregatedListSecurityPoliciesRequest request =
    *       AggregatedListSecurityPoliciesRequest.newBuilder()
@@ -386,8 +416,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   AggregatedListSecurityPoliciesRequest request =
    *       AggregatedListSecurityPoliciesRequest.newBuilder()
@@ -427,8 +460,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -457,8 +493,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   DeleteSecurityPolicyRequest request =
    *       DeleteSecurityPolicyRequest.newBuilder()
@@ -487,8 +526,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   DeleteSecurityPolicyRequest request =
    *       DeleteSecurityPolicyRequest.newBuilder()
@@ -515,8 +557,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   DeleteSecurityPolicyRequest request =
    *       DeleteSecurityPolicyRequest.newBuilder()
@@ -541,8 +586,11 @@ public final UnaryCallable<DeleteSecurityPolicyRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -570,8 +618,11 @@ public final SecurityPolicy get(String project, String securityPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   GetSecurityPolicyRequest request =
    *       GetSecurityPolicyRequest.newBuilder()
@@ -596,8 +647,11 @@ public final SecurityPolicy get(GetSecurityPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   GetSecurityPolicyRequest request =
    *       GetSecurityPolicyRequest.newBuilder()
@@ -621,8 +675,11 @@ public final UnaryCallable<GetSecurityPolicyRequest, SecurityPolicy> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -650,8 +707,11 @@ public final SecurityPolicyRule getRule(String project, String securityPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   GetRuleSecurityPolicyRequest request =
    *       GetRuleSecurityPolicyRequest.newBuilder()
@@ -677,8 +737,11 @@ public final SecurityPolicyRule getRule(GetRuleSecurityPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   GetRuleSecurityPolicyRequest request =
    *       GetRuleSecurityPolicyRequest.newBuilder()
@@ -704,8 +767,11 @@ public final UnaryCallable<GetRuleSecurityPolicyRequest, SecurityPolicyRule> get
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   SecurityPolicy securityPolicyResource = SecurityPolicy.newBuilder().build();
@@ -735,8 +801,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   InsertSecurityPolicyRequest request =
    *       InsertSecurityPolicyRequest.newBuilder()
@@ -766,8 +835,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   InsertSecurityPolicyRequest request =
    *       InsertSecurityPolicyRequest.newBuilder()
@@ -795,8 +867,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   InsertSecurityPolicyRequest request =
    *       InsertSecurityPolicyRequest.newBuilder()
@@ -822,8 +897,11 @@ public final UnaryCallable<InsertSecurityPolicyRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   for (SecurityPolicy element : securityPoliciesClient.list(project).iterateAll()) {
@@ -848,8 +926,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   ListSecurityPoliciesRequest request =
    *       ListSecurityPoliciesRequest.newBuilder()
@@ -880,8 +961,11 @@ public final ListPagedResponse list(ListSecurityPoliciesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   ListSecurityPoliciesRequest request =
    *       ListSecurityPoliciesRequest.newBuilder()
@@ -912,8 +996,11 @@ public final UnaryCallable<ListSecurityPoliciesRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   ListSecurityPoliciesRequest request =
    *       ListSecurityPoliciesRequest.newBuilder()
@@ -950,8 +1037,11 @@ public final UnaryCallable<ListSecurityPoliciesRequest, SecurityPolicyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   SecurityPoliciesListPreconfiguredExpressionSetsResponse response =
@@ -978,8 +1068,11 @@ public final UnaryCallable<ListSecurityPoliciesRequest, SecurityPolicyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   ListPreconfiguredExpressionSetsSecurityPoliciesRequest request =
    *       ListPreconfiguredExpressionSetsSecurityPoliciesRequest.newBuilder()
@@ -1011,8 +1104,11 @@ public final UnaryCallable<ListSecurityPoliciesRequest, SecurityPolicyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   ListPreconfiguredExpressionSetsSecurityPoliciesRequest request =
    *       ListPreconfiguredExpressionSetsSecurityPoliciesRequest.newBuilder()
@@ -1046,8 +1142,11 @@ public final UnaryCallable<ListSecurityPoliciesRequest, SecurityPolicyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -1082,8 +1181,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   PatchSecurityPolicyRequest request =
    *       PatchSecurityPolicyRequest.newBuilder()
@@ -1115,8 +1217,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   PatchSecurityPolicyRequest request =
    *       PatchSecurityPolicyRequest.newBuilder()
@@ -1146,8 +1251,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   PatchSecurityPolicyRequest request =
    *       PatchSecurityPolicyRequest.newBuilder()
@@ -1173,8 +1281,11 @@ public final UnaryCallable<PatchSecurityPolicyRequest, Operation> patchCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -1209,8 +1320,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   PatchRuleSecurityPolicyRequest request =
    *       PatchRuleSecurityPolicyRequest.newBuilder()
@@ -1241,8 +1355,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   PatchRuleSecurityPolicyRequest request =
    *       PatchRuleSecurityPolicyRequest.newBuilder()
@@ -1271,8 +1388,11 @@ public final OperationFuture<Operation, Operation> patchRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   PatchRuleSecurityPolicyRequest request =
    *       PatchRuleSecurityPolicyRequest.newBuilder()
@@ -1299,8 +1419,11 @@ public final UnaryCallable<PatchRuleSecurityPolicyRequest, Operation> patchRuleC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String securityPolicy = "securityPolicy-788621166";
@@ -1329,8 +1452,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   RemoveRuleSecurityPolicyRequest request =
    *       RemoveRuleSecurityPolicyRequest.newBuilder()
@@ -1359,8 +1485,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   RemoveRuleSecurityPolicyRequest request =
    *       RemoveRuleSecurityPolicyRequest.newBuilder()
@@ -1387,8 +1516,11 @@ public final OperationFuture<Operation, Operation> removeRuleAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
    *   RemoveRuleSecurityPolicyRequest request =
    *       RemoveRuleSecurityPolicyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesSettings.java
index 1dd74bc32..d0271b930 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SecurityPoliciesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SecurityPoliciesSettings.Builder securityPoliciesSettingsBuilder =
  *     SecurityPoliciesSettings.newBuilder();
  * securityPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         securityPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         securityPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SecurityPoliciesSettings securityPoliciesSettings = securityPoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsClient.java
index d222b9e2e..281df6355 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ServiceAttachmentsSettings serviceAttachmentsSettings =
  *     ServiceAttachmentsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ServiceAttachmentsSettings serviceAttachmentsSettings =
  *     ServiceAttachmentsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ServiceAttachmentsClient serviceAttachmentsClient =
@@ -165,8 +174,11 @@ public ServiceAttachmentsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, ServiceAttachmentsScopedList> element :
@@ -193,8 +205,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   AggregatedListServiceAttachmentsRequest request =
    *       AggregatedListServiceAttachmentsRequest.newBuilder()
@@ -229,8 +244,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   AggregatedListServiceAttachmentsRequest request =
    *       AggregatedListServiceAttachmentsRequest.newBuilder()
@@ -264,8 +282,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   AggregatedListServiceAttachmentsRequest request =
    *       AggregatedListServiceAttachmentsRequest.newBuilder()
@@ -306,8 +327,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -340,8 +364,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   DeleteServiceAttachmentRequest request =
    *       DeleteServiceAttachmentRequest.newBuilder()
@@ -371,8 +398,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   DeleteServiceAttachmentRequest request =
    *       DeleteServiceAttachmentRequest.newBuilder()
@@ -400,8 +430,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   DeleteServiceAttachmentRequest request =
    *       DeleteServiceAttachmentRequest.newBuilder()
@@ -427,8 +460,11 @@ public final UnaryCallable<DeleteServiceAttachmentRequest, Operation> deleteCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -459,8 +495,11 @@ public final ServiceAttachment get(String project, String region, String service
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   GetServiceAttachmentRequest request =
    *       GetServiceAttachmentRequest.newBuilder()
@@ -486,8 +525,11 @@ public final ServiceAttachment get(GetServiceAttachmentRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   GetServiceAttachmentRequest request =
    *       GetServiceAttachmentRequest.newBuilder()
@@ -514,8 +556,11 @@ public final UnaryCallable<GetServiceAttachmentRequest, ServiceAttachment> getCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -547,8 +592,11 @@ public final Policy getIamPolicy(String project, String region, String resource)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   GetIamPolicyServiceAttachmentRequest request =
    *       GetIamPolicyServiceAttachmentRequest.newBuilder()
@@ -576,8 +624,11 @@ public final Policy getIamPolicy(GetIamPolicyServiceAttachmentRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   GetIamPolicyServiceAttachmentRequest request =
    *       GetIamPolicyServiceAttachmentRequest.newBuilder()
@@ -605,8 +656,11 @@ public final UnaryCallable<GetIamPolicyServiceAttachmentRequest, Policy> getIamP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -640,8 +694,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   InsertServiceAttachmentRequest request =
    *       InsertServiceAttachmentRequest.newBuilder()
@@ -672,8 +729,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   InsertServiceAttachmentRequest request =
    *       InsertServiceAttachmentRequest.newBuilder()
@@ -702,8 +762,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   InsertServiceAttachmentRequest request =
    *       InsertServiceAttachmentRequest.newBuilder()
@@ -729,8 +792,11 @@ public final UnaryCallable<InsertServiceAttachmentRequest, Operation> insertCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -758,8 +824,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   ListServiceAttachmentsRequest request =
    *       ListServiceAttachmentsRequest.newBuilder()
@@ -791,8 +860,11 @@ public final ListPagedResponse list(ListServiceAttachmentsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   ListServiceAttachmentsRequest request =
    *       ListServiceAttachmentsRequest.newBuilder()
@@ -824,8 +896,11 @@ public final UnaryCallable<ListServiceAttachmentsRequest, ListPagedResponse> lis
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   ListServiceAttachmentsRequest request =
    *       ListServiceAttachmentsRequest.newBuilder()
@@ -864,8 +939,11 @@ public final UnaryCallable<ListServiceAttachmentsRequest, ServiceAttachmentList>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -908,8 +986,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   PatchServiceAttachmentRequest request =
    *       PatchServiceAttachmentRequest.newBuilder()
@@ -941,8 +1022,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   PatchServiceAttachmentRequest request =
    *       PatchServiceAttachmentRequest.newBuilder()
@@ -972,8 +1056,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   PatchServiceAttachmentRequest request =
    *       PatchServiceAttachmentRequest.newBuilder()
@@ -1000,8 +1087,11 @@ public final UnaryCallable<PatchServiceAttachmentRequest, Operation> patchCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1042,8 +1132,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   SetIamPolicyServiceAttachmentRequest request =
    *       SetIamPolicyServiceAttachmentRequest.newBuilder()
@@ -1070,8 +1163,11 @@ public final Policy setIamPolicy(SetIamPolicyServiceAttachmentRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   SetIamPolicyServiceAttachmentRequest request =
    *       SetIamPolicyServiceAttachmentRequest.newBuilder()
@@ -1098,8 +1194,11 @@ public final UnaryCallable<SetIamPolicyServiceAttachmentRequest, Policy> setIamP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1140,8 +1239,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   TestIamPermissionsServiceAttachmentRequest request =
    *       TestIamPermissionsServiceAttachmentRequest.newBuilder()
@@ -1169,8 +1271,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
    *   TestIamPermissionsServiceAttachmentRequest request =
    *       TestIamPermissionsServiceAttachmentRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsSettings.java
index 7d3fc8d0e..7416eae4e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ServiceAttachmentsSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ServiceAttachmentsSettings.Builder serviceAttachmentsSettingsBuilder =
  *     ServiceAttachmentsSettings.newBuilder();
  * serviceAttachmentsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         serviceAttachmentsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         serviceAttachmentsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ServiceAttachmentsSettings serviceAttachmentsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsClient.java
index 7a39301bd..ad185f18b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
  *   String project = "project-309310695";
  *   String snapshot = "snapshot284874180";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SnapshotsSettings snapshotsSettings =
  *     SnapshotsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SnapshotsSettings snapshotsSettings =
  *     SnapshotsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * SnapshotsClient snapshotsClient = SnapshotsClient.create(snapshotsSettings);
@@ -160,8 +169,11 @@ public SnapshotsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   String snapshot = "snapshot284874180";
@@ -189,8 +201,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   DeleteSnapshotRequest request =
    *       DeleteSnapshotRequest.newBuilder()
@@ -221,8 +236,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteSnapshotReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   DeleteSnapshotRequest request =
    *       DeleteSnapshotRequest.newBuilder()
@@ -252,8 +270,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteSnapshotReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   DeleteSnapshotRequest request =
    *       DeleteSnapshotRequest.newBuilder()
@@ -279,8 +300,11 @@ public final UnaryCallable<DeleteSnapshotRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   String snapshot = "snapshot284874180";
@@ -306,8 +330,11 @@ public final Snapshot get(String project, String snapshot) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   GetSnapshotRequest request =
    *       GetSnapshotRequest.newBuilder()
@@ -333,8 +360,11 @@ public final Snapshot get(GetSnapshotRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   GetSnapshotRequest request =
    *       GetSnapshotRequest.newBuilder()
@@ -359,8 +389,11 @@ public final UnaryCallable<GetSnapshotRequest, Snapshot> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -386,8 +419,11 @@ public final Policy getIamPolicy(String project, String resource) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   GetIamPolicySnapshotRequest request =
    *       GetIamPolicySnapshotRequest.newBuilder()
@@ -414,8 +450,11 @@ public final Policy getIamPolicy(GetIamPolicySnapshotRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   GetIamPolicySnapshotRequest request =
    *       GetIamPolicySnapshotRequest.newBuilder()
@@ -443,8 +482,11 @@ public final UnaryCallable<GetIamPolicySnapshotRequest, Policy> getIamPolicyCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   Snapshot snapshotResource = Snapshot.newBuilder().build();
@@ -476,8 +518,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   InsertSnapshotRequest request =
    *       InsertSnapshotRequest.newBuilder()
@@ -508,8 +553,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertSnapshotReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   InsertSnapshotRequest request =
    *       InsertSnapshotRequest.newBuilder()
@@ -539,8 +587,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertSnapshotReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   InsertSnapshotRequest request =
    *       InsertSnapshotRequest.newBuilder()
@@ -565,8 +616,11 @@ public final UnaryCallable<InsertSnapshotRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   for (Snapshot element : snapshotsClient.list(project).iterateAll()) {
@@ -590,8 +644,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   ListSnapshotsRequest request =
    *       ListSnapshotsRequest.newBuilder()
@@ -622,8 +679,11 @@ public final ListPagedResponse list(ListSnapshotsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   ListSnapshotsRequest request =
    *       ListSnapshotsRequest.newBuilder()
@@ -653,8 +713,11 @@ public final UnaryCallable<ListSnapshotsRequest, ListPagedResponse> listPagedCal
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   ListSnapshotsRequest request =
    *       ListSnapshotsRequest.newBuilder()
@@ -691,8 +754,11 @@ public final UnaryCallable<ListSnapshotsRequest, SnapshotList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -726,8 +792,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   SetIamPolicySnapshotRequest request =
    *       SetIamPolicySnapshotRequest.newBuilder()
@@ -753,8 +822,11 @@ public final Policy setIamPolicy(SetIamPolicySnapshotRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   SetIamPolicySnapshotRequest request =
    *       SetIamPolicySnapshotRequest.newBuilder()
@@ -780,8 +852,11 @@ public final UnaryCallable<SetIamPolicySnapshotRequest, Policy> setIamPolicyCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -816,8 +891,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   SetLabelsSnapshotRequest request =
    *       SetLabelsSnapshotRequest.newBuilder()
@@ -847,8 +925,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   SetLabelsSnapshotRequest request =
    *       SetLabelsSnapshotRequest.newBuilder()
@@ -876,8 +957,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   SetLabelsSnapshotRequest request =
    *       SetLabelsSnapshotRequest.newBuilder()
@@ -902,8 +986,11 @@ public final UnaryCallable<SetLabelsSnapshotRequest, Operation> setLabelsCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   String project = "project-309310695";
    *   String resource = "resource-341064690";
@@ -937,8 +1024,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   TestIamPermissionsSnapshotRequest request =
    *       TestIamPermissionsSnapshotRequest.newBuilder()
@@ -965,8 +1055,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
    *   TestIamPermissionsSnapshotRequest request =
    *       TestIamPermissionsSnapshotRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsSettings.java
index 0179eeee6..971ab4787 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SnapshotsSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SnapshotsSettings.Builder snapshotsSettingsBuilder = SnapshotsSettings.newBuilder();
  * snapshotsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         snapshotsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         snapshotsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SnapshotsSettings snapshotsSettings = snapshotsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesClient.java
index 7ae880e66..3646b4e6c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
  *   String project = "project-309310695";
  *   String sslCertificate = "sslCertificate-1304941589";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslCertificatesSettings sslCertificatesSettings =
  *     SslCertificatesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslCertificatesSettings sslCertificatesSettings =
  *     SslCertificatesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * SslCertificatesClient sslCertificatesClient =
@@ -164,8 +173,11 @@ public SslCertificatesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, SslCertificatesScopedList> element :
@@ -192,8 +204,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   AggregatedListSslCertificatesRequest request =
    *       AggregatedListSslCertificatesRequest.newBuilder()
@@ -228,8 +243,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   AggregatedListSslCertificatesRequest request =
    *       AggregatedListSslCertificatesRequest.newBuilder()
@@ -263,8 +281,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   AggregatedListSslCertificatesRequest request =
    *       AggregatedListSslCertificatesRequest.newBuilder()
@@ -304,8 +325,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   String project = "project-309310695";
    *   String sslCertificate = "sslCertificate-1304941589";
@@ -334,8 +358,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   DeleteSslCertificateRequest request =
    *       DeleteSslCertificateRequest.newBuilder()
@@ -364,8 +391,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   DeleteSslCertificateRequest request =
    *       DeleteSslCertificateRequest.newBuilder()
@@ -392,8 +422,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   DeleteSslCertificateRequest request =
    *       DeleteSslCertificateRequest.newBuilder()
@@ -419,8 +452,11 @@ public final UnaryCallable<DeleteSslCertificateRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   String project = "project-309310695";
    *   String sslCertificate = "sslCertificate-1304941589";
@@ -449,8 +485,11 @@ public final SslCertificate get(String project, String sslCertificate) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   GetSslCertificateRequest request =
    *       GetSslCertificateRequest.newBuilder()
@@ -476,8 +515,11 @@ public final SslCertificate get(GetSslCertificateRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   GetSslCertificateRequest request =
    *       GetSslCertificateRequest.newBuilder()
@@ -502,8 +544,11 @@ public final UnaryCallable<GetSslCertificateRequest, SslCertificate> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   String project = "project-309310695";
    *   SslCertificate sslCertificateResource = SslCertificate.newBuilder().build();
@@ -533,8 +578,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   InsertSslCertificateRequest request =
    *       InsertSslCertificateRequest.newBuilder()
@@ -564,8 +612,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   InsertSslCertificateRequest request =
    *       InsertSslCertificateRequest.newBuilder()
@@ -593,8 +644,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   InsertSslCertificateRequest request =
    *       InsertSslCertificateRequest.newBuilder()
@@ -619,8 +673,11 @@ public final UnaryCallable<InsertSslCertificateRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   String project = "project-309310695";
    *   for (SslCertificate element : sslCertificatesClient.list(project).iterateAll()) {
@@ -645,8 +702,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   ListSslCertificatesRequest request =
    *       ListSslCertificatesRequest.newBuilder()
@@ -677,8 +737,11 @@ public final ListPagedResponse list(ListSslCertificatesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   ListSslCertificatesRequest request =
    *       ListSslCertificatesRequest.newBuilder()
@@ -709,8 +772,11 @@ public final UnaryCallable<ListSslCertificatesRequest, ListPagedResponse> listPa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
    *   ListSslCertificatesRequest request =
    *       ListSslCertificatesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesSettings.java
index db763bd2c..1ceb12399 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslCertificatesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslCertificatesSettings.Builder sslCertificatesSettingsBuilder =
  *     SslCertificatesSettings.newBuilder();
  * sslCertificatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         sslCertificatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         sslCertificatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SslCertificatesSettings sslCertificatesSettings = sslCertificatesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesClient.java
index ae624ba55..54c796635 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
  *   String project = "project-309310695";
  *   String sslPolicy = "sslPolicy618174046";
@@ -81,8 +84,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslPoliciesSettings sslPoliciesSettings =
  *     SslPoliciesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -93,8 +99,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslPoliciesSettings sslPoliciesSettings =
  *     SslPoliciesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create(sslPoliciesSettings);
@@ -159,8 +168,11 @@ public SslPoliciesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String sslPolicy = "sslPolicy618174046";
@@ -187,8 +199,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   DeleteSslPolicyRequest request =
    *       DeleteSslPolicyRequest.newBuilder()
@@ -217,8 +232,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteSslPolicyRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   DeleteSslPolicyRequest request =
    *       DeleteSslPolicyRequest.newBuilder()
@@ -246,8 +264,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteSslPolicyRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   DeleteSslPolicyRequest request =
    *       DeleteSslPolicyRequest.newBuilder()
@@ -272,8 +293,11 @@ public final UnaryCallable<DeleteSslPolicyRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String sslPolicy = "sslPolicy618174046";
@@ -299,8 +323,11 @@ public final SslPolicy get(String project, String sslPolicy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   GetSslPolicyRequest request =
    *       GetSslPolicyRequest.newBuilder()
@@ -325,8 +352,11 @@ public final SslPolicy get(GetSslPolicyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   GetSslPolicyRequest request =
    *       GetSslPolicyRequest.newBuilder()
@@ -351,8 +381,11 @@ public final UnaryCallable<GetSslPolicyRequest, SslPolicy> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   SslPolicy sslPolicyResource = SslPolicy.newBuilder().build();
@@ -382,8 +415,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   InsertSslPolicyRequest request =
    *       InsertSslPolicyRequest.newBuilder()
@@ -412,8 +448,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertSslPolicyRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   InsertSslPolicyRequest request =
    *       InsertSslPolicyRequest.newBuilder()
@@ -441,8 +480,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertSslPolicyRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   InsertSslPolicyRequest request =
    *       InsertSslPolicyRequest.newBuilder()
@@ -467,8 +509,11 @@ public final UnaryCallable<InsertSslPolicyRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   for (SslPolicy element : sslPoliciesClient.list(project).iterateAll()) {
@@ -493,8 +538,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   ListSslPoliciesRequest request =
    *       ListSslPoliciesRequest.newBuilder()
@@ -525,8 +573,11 @@ public final ListPagedResponse list(ListSslPoliciesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   ListSslPoliciesRequest request =
    *       ListSslPoliciesRequest.newBuilder()
@@ -556,8 +607,11 @@ public final UnaryCallable<ListSslPoliciesRequest, ListPagedResponse> listPagedC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   ListSslPoliciesRequest request =
    *       ListSslPoliciesRequest.newBuilder()
@@ -594,8 +648,11 @@ public final UnaryCallable<ListSslPoliciesRequest, SslPoliciesList> listCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   SslPoliciesListAvailableFeaturesResponse response =
@@ -619,8 +676,11 @@ public final SslPoliciesListAvailableFeaturesResponse listAvailableFeatures(Stri
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   ListAvailableFeaturesSslPoliciesRequest request =
    *       ListAvailableFeaturesSslPoliciesRequest.newBuilder()
@@ -651,8 +711,11 @@ public final SslPoliciesListAvailableFeaturesResponse listAvailableFeatures(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   ListAvailableFeaturesSslPoliciesRequest request =
    *       ListAvailableFeaturesSslPoliciesRequest.newBuilder()
@@ -683,8 +746,11 @@ public final SslPoliciesListAvailableFeaturesResponse listAvailableFeatures(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   String project = "project-309310695";
    *   String sslPolicy = "sslPolicy618174046";
@@ -718,8 +784,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   PatchSslPolicyRequest request =
    *       PatchSslPolicyRequest.newBuilder()
@@ -748,8 +817,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchSslPolicyRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   PatchSslPolicyRequest request =
    *       PatchSslPolicyRequest.newBuilder()
@@ -777,8 +849,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchSslPolicyRequ
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
    *   PatchSslPolicyRequest request =
    *       PatchSslPolicyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesSettings.java
index 2e8b274cc..cb2e47529 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SslPoliciesSettings.java
@@ -53,16 +53,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslPoliciesSettings.Builder sslPoliciesSettingsBuilder = SslPoliciesSettings.newBuilder();
  * sslPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         sslPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         sslPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SslPoliciesSettings sslPoliciesSettings = sslPoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksClient.java
index e68bff2a7..d2958e4fb 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SubnetworksSettings subnetworksSettings =
  *     SubnetworksSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SubnetworksSettings subnetworksSettings =
  *     SubnetworksSettings.newBuilder().setEndpoint(myEndpoint).build();
  * SubnetworksClient subnetworksClient = SubnetworksClient.create(subnetworksSettings);
@@ -160,8 +169,11 @@ public SubnetworksStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, SubnetworksScopedList> element :
@@ -187,8 +199,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   AggregatedListSubnetworksRequest request =
    *       AggregatedListSubnetworksRequest.newBuilder()
@@ -222,8 +237,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   AggregatedListSubnetworksRequest request =
    *       AggregatedListSubnetworksRequest.newBuilder()
@@ -256,8 +274,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   AggregatedListSubnetworksRequest request =
    *       AggregatedListSubnetworksRequest.newBuilder()
@@ -297,8 +318,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -330,8 +354,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   DeleteSubnetworkRequest request =
    *       DeleteSubnetworkRequest.newBuilder()
@@ -360,8 +387,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteSubnetworkR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   DeleteSubnetworkRequest request =
    *       DeleteSubnetworkRequest.newBuilder()
@@ -389,8 +419,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteSubnetworkR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   DeleteSubnetworkRequest request =
    *       DeleteSubnetworkRequest.newBuilder()
@@ -416,8 +449,11 @@ public final UnaryCallable<DeleteSubnetworkRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -461,8 +497,11 @@ public final OperationFuture<Operation, Operation> expandIpCidrRangeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ExpandIpCidrRangeSubnetworkRequest request =
    *       ExpandIpCidrRangeSubnetworkRequest.newBuilder()
@@ -494,8 +533,11 @@ public final OperationFuture<Operation, Operation> expandIpCidrRangeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ExpandIpCidrRangeSubnetworkRequest request =
    *       ExpandIpCidrRangeSubnetworkRequest.newBuilder()
@@ -525,8 +567,11 @@ public final OperationFuture<Operation, Operation> expandIpCidrRangeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ExpandIpCidrRangeSubnetworkRequest request =
    *       ExpandIpCidrRangeSubnetworkRequest.newBuilder()
@@ -556,8 +601,11 @@ public final OperationFuture<Operation, Operation> expandIpCidrRangeAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -588,8 +636,11 @@ public final Subnetwork get(String project, String region, String subnetwork) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   GetSubnetworkRequest request =
    *       GetSubnetworkRequest.newBuilder()
@@ -615,8 +666,11 @@ public final Subnetwork get(GetSubnetworkRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   GetSubnetworkRequest request =
    *       GetSubnetworkRequest.newBuilder()
@@ -642,8 +696,11 @@ public final UnaryCallable<GetSubnetworkRequest, Subnetwork> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -675,8 +732,11 @@ public final Policy getIamPolicy(String project, String region, String resource)
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   GetIamPolicySubnetworkRequest request =
    *       GetIamPolicySubnetworkRequest.newBuilder()
@@ -704,8 +764,11 @@ public final Policy getIamPolicy(GetIamPolicySubnetworkRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   GetIamPolicySubnetworkRequest request =
    *       GetIamPolicySubnetworkRequest.newBuilder()
@@ -731,8 +794,11 @@ public final UnaryCallable<GetIamPolicySubnetworkRequest, Policy> getIamPolicyCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -764,8 +830,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   InsertSubnetworkRequest request =
    *       InsertSubnetworkRequest.newBuilder()
@@ -794,8 +863,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertSubnetworkR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   InsertSubnetworkRequest request =
    *       InsertSubnetworkRequest.newBuilder()
@@ -823,8 +895,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertSubnetworkR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   InsertSubnetworkRequest request =
    *       InsertSubnetworkRequest.newBuilder()
@@ -850,8 +925,11 @@ public final UnaryCallable<InsertSubnetworkRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -878,8 +956,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ListSubnetworksRequest request =
    *       ListSubnetworksRequest.newBuilder()
@@ -911,8 +992,11 @@ public final ListPagedResponse list(ListSubnetworksRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ListSubnetworksRequest request =
    *       ListSubnetworksRequest.newBuilder()
@@ -943,8 +1027,11 @@ public final UnaryCallable<ListSubnetworksRequest, ListPagedResponse> listPagedC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ListSubnetworksRequest request =
    *       ListSubnetworksRequest.newBuilder()
@@ -982,8 +1069,11 @@ public final UnaryCallable<ListSubnetworksRequest, SubnetworkList> listCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   for (UsableSubnetwork element : subnetworksClient.listUsable(project).iterateAll()) {
@@ -1008,8 +1098,11 @@ public final ListUsablePagedResponse listUsable(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -1040,8 +1133,11 @@ public final ListUsablePagedResponse listUsable(ListUsableSubnetworksRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -1073,8 +1169,11 @@ public final ListUsablePagedResponse listUsable(ListUsableSubnetworksRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -1115,8 +1214,11 @@ public final ListUsablePagedResponse listUsable(ListUsableSubnetworksRequest req
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1154,8 +1256,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   PatchSubnetworkRequest request =
    *       PatchSubnetworkRequest.newBuilder()
@@ -1188,8 +1293,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchSubnetworkReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   PatchSubnetworkRequest request =
    *       PatchSubnetworkRequest.newBuilder()
@@ -1221,8 +1329,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchSubnetworkReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   PatchSubnetworkRequest request =
    *       PatchSubnetworkRequest.newBuilder()
@@ -1250,8 +1361,11 @@ public final UnaryCallable<PatchSubnetworkRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1291,8 +1405,11 @@ public final Policy setIamPolicy(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   SetIamPolicySubnetworkRequest request =
    *       SetIamPolicySubnetworkRequest.newBuilder()
@@ -1319,8 +1436,11 @@ public final Policy setIamPolicy(SetIamPolicySubnetworkRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   SetIamPolicySubnetworkRequest request =
    *       SetIamPolicySubnetworkRequest.newBuilder()
@@ -1347,8 +1467,11 @@ public final UnaryCallable<SetIamPolicySubnetworkRequest, Policy> setIamPolicyCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1395,8 +1518,11 @@ public final OperationFuture<Operation, Operation> setPrivateIpGoogleAccessAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   SetPrivateIpGoogleAccessSubnetworkRequest request =
    *       SetPrivateIpGoogleAccessSubnetworkRequest.newBuilder()
@@ -1429,8 +1555,11 @@ public final OperationFuture<Operation, Operation> setPrivateIpGoogleAccessAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   SetPrivateIpGoogleAccessSubnetworkRequest request =
    *       SetPrivateIpGoogleAccessSubnetworkRequest.newBuilder()
@@ -1461,8 +1590,11 @@ public final OperationFuture<Operation, Operation> setPrivateIpGoogleAccessAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   SetPrivateIpGoogleAccessSubnetworkRequest request =
    *       SetPrivateIpGoogleAccessSubnetworkRequest.newBuilder()
@@ -1492,8 +1624,11 @@ public final OperationFuture<Operation, Operation> setPrivateIpGoogleAccessAsync
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1534,8 +1669,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   TestIamPermissionsSubnetworkRequest request =
    *       TestIamPermissionsSubnetworkRequest.newBuilder()
@@ -1563,8 +1701,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
    *   TestIamPermissionsSubnetworkRequest request =
    *       TestIamPermissionsSubnetworkRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksSettings.java
index 4408ba12a..d5583d355 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/SubnetworksSettings.java
@@ -55,16 +55,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SubnetworksSettings.Builder subnetworksSettingsBuilder = SubnetworksSettings.newBuilder();
  * subnetworksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         subnetworksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         subnetworksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SubnetworksSettings subnetworksSettings = subnetworksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesClient.java
index f3ae89236..f19cec5eb 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetGrpcProxy = "targetGrpcProxy1045500511";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetGrpcProxiesSettings targetGrpcProxiesSettings =
  *     TargetGrpcProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetGrpcProxiesSettings targetGrpcProxiesSettings =
  *     TargetGrpcProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetGrpcProxiesClient targetGrpcProxiesClient =
@@ -162,8 +171,11 @@ public TargetGrpcProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetGrpcProxy = "targetGrpcProxy1045500511";
@@ -192,8 +204,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   DeleteTargetGrpcProxyRequest request =
    *       DeleteTargetGrpcProxyRequest.newBuilder()
@@ -222,8 +237,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   DeleteTargetGrpcProxyRequest request =
    *       DeleteTargetGrpcProxyRequest.newBuilder()
@@ -250,8 +268,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   DeleteTargetGrpcProxyRequest request =
    *       DeleteTargetGrpcProxyRequest.newBuilder()
@@ -276,8 +297,11 @@ public final UnaryCallable<DeleteTargetGrpcProxyRequest, Operation> deleteCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetGrpcProxy = "targetGrpcProxy1045500511";
@@ -305,8 +329,11 @@ public final TargetGrpcProxy get(String project, String targetGrpcProxy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   GetTargetGrpcProxyRequest request =
    *       GetTargetGrpcProxyRequest.newBuilder()
@@ -331,8 +358,11 @@ public final TargetGrpcProxy get(GetTargetGrpcProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   GetTargetGrpcProxyRequest request =
    *       GetTargetGrpcProxyRequest.newBuilder()
@@ -357,8 +387,11 @@ public final UnaryCallable<GetTargetGrpcProxyRequest, TargetGrpcProxy> getCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   String project = "project-309310695";
    *   TargetGrpcProxy targetGrpcProxyResource = TargetGrpcProxy.newBuilder().build();
@@ -389,8 +422,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   InsertTargetGrpcProxyRequest request =
    *       InsertTargetGrpcProxyRequest.newBuilder()
@@ -420,8 +456,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   InsertTargetGrpcProxyRequest request =
    *       InsertTargetGrpcProxyRequest.newBuilder()
@@ -449,8 +488,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   InsertTargetGrpcProxyRequest request =
    *       InsertTargetGrpcProxyRequest.newBuilder()
@@ -475,8 +517,11 @@ public final UnaryCallable<InsertTargetGrpcProxyRequest, Operation> insertCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (TargetGrpcProxy element : targetGrpcProxiesClient.list(project).iterateAll()) {
@@ -501,8 +546,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   ListTargetGrpcProxiesRequest request =
    *       ListTargetGrpcProxiesRequest.newBuilder()
@@ -533,8 +581,11 @@ public final ListPagedResponse list(ListTargetGrpcProxiesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   ListTargetGrpcProxiesRequest request =
    *       ListTargetGrpcProxiesRequest.newBuilder()
@@ -565,8 +616,11 @@ public final UnaryCallable<ListTargetGrpcProxiesRequest, ListPagedResponse> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   ListTargetGrpcProxiesRequest request =
    *       ListTargetGrpcProxiesRequest.newBuilder()
@@ -604,8 +658,11 @@ public final UnaryCallable<ListTargetGrpcProxiesRequest, TargetGrpcProxyList> li
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetGrpcProxy = "targetGrpcProxy1045500511";
@@ -641,8 +698,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   PatchTargetGrpcProxyRequest request =
    *       PatchTargetGrpcProxyRequest.newBuilder()
@@ -673,8 +733,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   PatchTargetGrpcProxyRequest request =
    *       PatchTargetGrpcProxyRequest.newBuilder()
@@ -703,8 +766,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
    *   PatchTargetGrpcProxyRequest request =
    *       PatchTargetGrpcProxyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesSettings.java
index de6024c0d..ed5fd8f57 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetGrpcProxiesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetGrpcProxiesSettings.Builder targetGrpcProxiesSettingsBuilder =
  *     TargetGrpcProxiesSettings.newBuilder();
  * targetGrpcProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetGrpcProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetGrpcProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetGrpcProxiesSettings targetGrpcProxiesSettings = targetGrpcProxiesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesClient.java
index a8dcc7278..70c44d152 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetHttpProxy = "targetHttpProxy-1944074187";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpProxiesSettings targetHttpProxiesSettings =
  *     TargetHttpProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpProxiesSettings targetHttpProxiesSettings =
  *     TargetHttpProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetHttpProxiesClient targetHttpProxiesClient =
@@ -164,8 +173,11 @@ public TargetHttpProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, TargetHttpProxiesScopedList> element :
@@ -192,8 +204,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   AggregatedListTargetHttpProxiesRequest request =
    *       AggregatedListTargetHttpProxiesRequest.newBuilder()
@@ -228,8 +243,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   AggregatedListTargetHttpProxiesRequest request =
    *       AggregatedListTargetHttpProxiesRequest.newBuilder()
@@ -263,8 +281,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   AggregatedListTargetHttpProxiesRequest request =
    *       AggregatedListTargetHttpProxiesRequest.newBuilder()
@@ -304,8 +325,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpProxy = "targetHttpProxy-1944074187";
@@ -334,8 +358,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   DeleteTargetHttpProxyRequest request =
    *       DeleteTargetHttpProxyRequest.newBuilder()
@@ -364,8 +391,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   DeleteTargetHttpProxyRequest request =
    *       DeleteTargetHttpProxyRequest.newBuilder()
@@ -392,8 +422,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   DeleteTargetHttpProxyRequest request =
    *       DeleteTargetHttpProxyRequest.newBuilder()
@@ -419,8 +452,11 @@ public final UnaryCallable<DeleteTargetHttpProxyRequest, Operation> deleteCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpProxy = "targetHttpProxy-1944074187";
@@ -449,8 +485,11 @@ public final TargetHttpProxy get(String project, String targetHttpProxy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   GetTargetHttpProxyRequest request =
    *       GetTargetHttpProxyRequest.newBuilder()
@@ -476,8 +515,11 @@ public final TargetHttpProxy get(GetTargetHttpProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   GetTargetHttpProxyRequest request =
    *       GetTargetHttpProxyRequest.newBuilder()
@@ -502,8 +544,11 @@ public final UnaryCallable<GetTargetHttpProxyRequest, TargetHttpProxy> getCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   TargetHttpProxy targetHttpProxyResource = TargetHttpProxy.newBuilder().build();
@@ -534,8 +579,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   InsertTargetHttpProxyRequest request =
    *       InsertTargetHttpProxyRequest.newBuilder()
@@ -565,8 +613,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   InsertTargetHttpProxyRequest request =
    *       InsertTargetHttpProxyRequest.newBuilder()
@@ -594,8 +645,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   InsertTargetHttpProxyRequest request =
    *       InsertTargetHttpProxyRequest.newBuilder()
@@ -620,8 +674,11 @@ public final UnaryCallable<InsertTargetHttpProxyRequest, Operation> insertCallab
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (TargetHttpProxy element : targetHttpProxiesClient.list(project).iterateAll()) {
@@ -646,8 +703,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   ListTargetHttpProxiesRequest request =
    *       ListTargetHttpProxiesRequest.newBuilder()
@@ -678,8 +738,11 @@ public final ListPagedResponse list(ListTargetHttpProxiesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   ListTargetHttpProxiesRequest request =
    *       ListTargetHttpProxiesRequest.newBuilder()
@@ -710,8 +773,11 @@ public final UnaryCallable<ListTargetHttpProxiesRequest, ListPagedResponse> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   ListTargetHttpProxiesRequest request =
    *       ListTargetHttpProxiesRequest.newBuilder()
@@ -749,8 +815,11 @@ public final UnaryCallable<ListTargetHttpProxiesRequest, TargetHttpProxyList> li
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpProxy = "targetHttpProxy-1944074187";
@@ -786,8 +855,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   PatchTargetHttpProxyRequest request =
    *       PatchTargetHttpProxyRequest.newBuilder()
@@ -818,8 +890,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   PatchTargetHttpProxyRequest request =
    *       PatchTargetHttpProxyRequest.newBuilder()
@@ -848,8 +923,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   PatchTargetHttpProxyRequest request =
    *       PatchTargetHttpProxyRequest.newBuilder()
@@ -875,8 +953,11 @@ public final UnaryCallable<PatchTargetHttpProxyRequest, Operation> patchCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpProxy = "targetHttpProxy-1944074187";
@@ -911,8 +992,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   SetUrlMapTargetHttpProxyRequest request =
    *       SetUrlMapTargetHttpProxyRequest.newBuilder()
@@ -942,8 +1026,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   SetUrlMapTargetHttpProxyRequest request =
    *       SetUrlMapTargetHttpProxyRequest.newBuilder()
@@ -971,8 +1058,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
    *   SetUrlMapTargetHttpProxyRequest request =
    *       SetUrlMapTargetHttpProxyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesSettings.java
index 891fdf622..fbfcd24ec 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpProxiesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpProxiesSettings.Builder targetHttpProxiesSettingsBuilder =
  *     TargetHttpProxiesSettings.newBuilder();
  * targetHttpProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetHttpProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetHttpProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetHttpProxiesSettings targetHttpProxiesSettings = targetHttpProxiesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesClient.java
index c85194120..87ea6b8ea 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpsProxiesSettings targetHttpsProxiesSettings =
  *     TargetHttpsProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -96,8 +102,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpsProxiesSettings targetHttpsProxiesSettings =
  *     TargetHttpsProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetHttpsProxiesClient targetHttpsProxiesClient =
@@ -164,8 +173,11 @@ public TargetHttpsProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, TargetHttpsProxiesScopedList> element :
@@ -192,8 +204,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   AggregatedListTargetHttpsProxiesRequest request =
    *       AggregatedListTargetHttpsProxiesRequest.newBuilder()
@@ -228,8 +243,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   AggregatedListTargetHttpsProxiesRequest request =
    *       AggregatedListTargetHttpsProxiesRequest.newBuilder()
@@ -263,8 +281,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   AggregatedListTargetHttpsProxiesRequest request =
    *       AggregatedListTargetHttpsProxiesRequest.newBuilder()
@@ -305,8 +326,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -335,8 +359,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   DeleteTargetHttpsProxyRequest request =
    *       DeleteTargetHttpsProxyRequest.newBuilder()
@@ -365,8 +392,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   DeleteTargetHttpsProxyRequest request =
    *       DeleteTargetHttpsProxyRequest.newBuilder()
@@ -393,8 +423,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   DeleteTargetHttpsProxyRequest request =
    *       DeleteTargetHttpsProxyRequest.newBuilder()
@@ -420,8 +453,11 @@ public final UnaryCallable<DeleteTargetHttpsProxyRequest, Operation> deleteCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -450,8 +486,11 @@ public final TargetHttpsProxy get(String project, String targetHttpsProxy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   GetTargetHttpsProxyRequest request =
    *       GetTargetHttpsProxyRequest.newBuilder()
@@ -477,8 +516,11 @@ public final TargetHttpsProxy get(GetTargetHttpsProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   GetTargetHttpsProxyRequest request =
    *       GetTargetHttpsProxyRequest.newBuilder()
@@ -504,8 +546,11 @@ public final UnaryCallable<GetTargetHttpsProxyRequest, TargetHttpsProxy> getCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   TargetHttpsProxy targetHttpsProxyResource = TargetHttpsProxy.newBuilder().build();
@@ -536,8 +581,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   InsertTargetHttpsProxyRequest request =
    *       InsertTargetHttpsProxyRequest.newBuilder()
@@ -567,8 +615,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   InsertTargetHttpsProxyRequest request =
    *       InsertTargetHttpsProxyRequest.newBuilder()
@@ -596,8 +647,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   InsertTargetHttpsProxyRequest request =
    *       InsertTargetHttpsProxyRequest.newBuilder()
@@ -622,8 +676,11 @@ public final UnaryCallable<InsertTargetHttpsProxyRequest, Operation> insertCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (TargetHttpsProxy element : targetHttpsProxiesClient.list(project).iterateAll()) {
@@ -648,8 +705,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   ListTargetHttpsProxiesRequest request =
    *       ListTargetHttpsProxiesRequest.newBuilder()
@@ -680,8 +740,11 @@ public final ListPagedResponse list(ListTargetHttpsProxiesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   ListTargetHttpsProxiesRequest request =
    *       ListTargetHttpsProxiesRequest.newBuilder()
@@ -712,8 +775,11 @@ public final UnaryCallable<ListTargetHttpsProxiesRequest, ListPagedResponse> lis
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   ListTargetHttpsProxiesRequest request =
    *       ListTargetHttpsProxiesRequest.newBuilder()
@@ -751,8 +817,11 @@ public final UnaryCallable<ListTargetHttpsProxiesRequest, TargetHttpsProxyList>
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -788,8 +857,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   PatchTargetHttpsProxyRequest request =
    *       PatchTargetHttpsProxyRequest.newBuilder()
@@ -820,8 +892,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   PatchTargetHttpsProxyRequest request =
    *       PatchTargetHttpsProxyRequest.newBuilder()
@@ -850,8 +925,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   PatchTargetHttpsProxyRequest request =
    *       PatchTargetHttpsProxyRequest.newBuilder()
@@ -877,8 +955,11 @@ public final UnaryCallable<PatchTargetHttpsProxyRequest, Operation> patchCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -921,8 +1002,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetCertificateMapTargetHttpsProxyRequest request =
    *       SetCertificateMapTargetHttpsProxyRequest.newBuilder()
@@ -953,8 +1037,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetCertificateMapTargetHttpsProxyRequest request =
    *       SetCertificateMapTargetHttpsProxyRequest.newBuilder()
@@ -983,8 +1070,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetCertificateMapTargetHttpsProxyRequest request =
    *       SetCertificateMapTargetHttpsProxyRequest.newBuilder()
@@ -1013,8 +1103,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -1055,8 +1148,11 @@ public final OperationFuture<Operation, Operation> setQuicOverrideAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetQuicOverrideTargetHttpsProxyRequest request =
    *       SetQuicOverrideTargetHttpsProxyRequest.newBuilder()
@@ -1087,8 +1183,11 @@ public final OperationFuture<Operation, Operation> setQuicOverrideAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetQuicOverrideTargetHttpsProxyRequest request =
    *       SetQuicOverrideTargetHttpsProxyRequest.newBuilder()
@@ -1117,8 +1216,11 @@ public final OperationFuture<Operation, Operation> setQuicOverrideAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetQuicOverrideTargetHttpsProxyRequest request =
    *       SetQuicOverrideTargetHttpsProxyRequest.newBuilder()
@@ -1147,8 +1249,11 @@ public final OperationFuture<Operation, Operation> setQuicOverrideAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -1191,8 +1296,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetSslCertificatesTargetHttpsProxyRequest request =
    *       SetSslCertificatesTargetHttpsProxyRequest.newBuilder()
@@ -1223,8 +1331,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetSslCertificatesTargetHttpsProxyRequest request =
    *       SetSslCertificatesTargetHttpsProxyRequest.newBuilder()
@@ -1253,8 +1364,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetSslCertificatesTargetHttpsProxyRequest request =
    *       SetSslCertificatesTargetHttpsProxyRequest.newBuilder()
@@ -1285,8 +1399,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -1324,8 +1441,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetSslPolicyTargetHttpsProxyRequest request =
    *       SetSslPolicyTargetHttpsProxyRequest.newBuilder()
@@ -1357,8 +1477,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetSslPolicyTargetHttpsProxyRequest request =
    *       SetSslPolicyTargetHttpsProxyRequest.newBuilder()
@@ -1388,8 +1511,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetSslPolicyTargetHttpsProxyRequest request =
    *       SetSslPolicyTargetHttpsProxyRequest.newBuilder()
@@ -1417,8 +1543,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -1453,8 +1582,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetUrlMapTargetHttpsProxyRequest request =
    *       SetUrlMapTargetHttpsProxyRequest.newBuilder()
@@ -1484,8 +1616,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetUrlMapTargetHttpsProxyRequest request =
    *       SetUrlMapTargetHttpsProxyRequest.newBuilder()
@@ -1513,8 +1648,11 @@ public final OperationFuture<Operation, Operation> setUrlMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
    *   SetUrlMapTargetHttpsProxyRequest request =
    *       SetUrlMapTargetHttpsProxyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesSettings.java
index c2f4d7e4a..8818ed41f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetHttpsProxiesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpsProxiesSettings.Builder targetHttpsProxiesSettingsBuilder =
  *     TargetHttpsProxiesSettings.newBuilder();
  * targetHttpsProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetHttpsProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetHttpsProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetHttpsProxiesSettings targetHttpsProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesClient.java
index 4f308f89b..5ca14249e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetInstancesSettings targetInstancesSettings =
  *     TargetInstancesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetInstancesSettings targetInstancesSettings =
  *     TargetInstancesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetInstancesClient targetInstancesClient =
@@ -164,8 +173,11 @@ public TargetInstancesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, TargetInstancesScopedList> element :
@@ -191,8 +203,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   AggregatedListTargetInstancesRequest request =
    *       AggregatedListTargetInstancesRequest.newBuilder()
@@ -226,8 +241,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   AggregatedListTargetInstancesRequest request =
    *       AggregatedListTargetInstancesRequest.newBuilder()
@@ -260,8 +278,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   AggregatedListTargetInstancesRequest request =
    *       AggregatedListTargetInstancesRequest.newBuilder()
@@ -301,8 +322,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -334,8 +358,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   DeleteTargetInstanceRequest request =
    *       DeleteTargetInstanceRequest.newBuilder()
@@ -365,8 +392,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   DeleteTargetInstanceRequest request =
    *       DeleteTargetInstanceRequest.newBuilder()
@@ -394,8 +424,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   DeleteTargetInstanceRequest request =
    *       DeleteTargetInstanceRequest.newBuilder()
@@ -422,8 +455,11 @@ public final UnaryCallable<DeleteTargetInstanceRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -455,8 +491,11 @@ public final TargetInstance get(String project, String zone, String targetInstan
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   GetTargetInstanceRequest request =
    *       GetTargetInstanceRequest.newBuilder()
@@ -483,8 +522,11 @@ public final TargetInstance get(GetTargetInstanceRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   GetTargetInstanceRequest request =
    *       GetTargetInstanceRequest.newBuilder()
@@ -510,8 +552,11 @@ public final UnaryCallable<GetTargetInstanceRequest, TargetInstance> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -545,8 +590,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   InsertTargetInstanceRequest request =
    *       InsertTargetInstanceRequest.newBuilder()
@@ -577,8 +625,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   InsertTargetInstanceRequest request =
    *       InsertTargetInstanceRequest.newBuilder()
@@ -607,8 +658,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   InsertTargetInstanceRequest request =
    *       InsertTargetInstanceRequest.newBuilder()
@@ -634,8 +688,11 @@ public final UnaryCallable<InsertTargetInstanceRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -662,8 +719,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   ListTargetInstancesRequest request =
    *       ListTargetInstancesRequest.newBuilder()
@@ -695,8 +755,11 @@ public final ListPagedResponse list(ListTargetInstancesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   ListTargetInstancesRequest request =
    *       ListTargetInstancesRequest.newBuilder()
@@ -728,8 +791,11 @@ public final UnaryCallable<ListTargetInstancesRequest, ListPagedResponse> listPa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
    *   ListTargetInstancesRequest request =
    *       ListTargetInstancesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesSettings.java
index f86cb944e..4b67fe797 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetInstancesSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetInstancesSettings.Builder targetInstancesSettingsBuilder =
  *     TargetInstancesSettings.newBuilder();
  * targetInstancesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetInstancesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetInstancesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetInstancesSettings targetInstancesSettings = targetInstancesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsClient.java
index 5826b6db3..8101fe665 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetPoolsSettings targetPoolsSettings =
  *     TargetPoolsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetPoolsSettings targetPoolsSettings =
  *     TargetPoolsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetPoolsClient targetPoolsClient = TargetPoolsClient.create(targetPoolsSettings);
@@ -160,8 +169,11 @@ public TargetPoolsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -204,8 +216,11 @@ public final OperationFuture<Operation, Operation> addHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AddHealthCheckTargetPoolRequest request =
    *       AddHealthCheckTargetPoolRequest.newBuilder()
@@ -237,8 +252,11 @@ public final OperationFuture<Operation, Operation> addHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AddHealthCheckTargetPoolRequest request =
    *       AddHealthCheckTargetPoolRequest.newBuilder()
@@ -268,8 +286,11 @@ public final OperationFuture<Operation, Operation> addHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AddHealthCheckTargetPoolRequest request =
    *       AddHealthCheckTargetPoolRequest.newBuilder()
@@ -297,8 +318,11 @@ public final UnaryCallable<AddHealthCheckTargetPoolRequest, Operation> addHealth
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -340,8 +364,11 @@ public final OperationFuture<Operation, Operation> addInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AddInstanceTargetPoolRequest request =
    *       AddInstanceTargetPoolRequest.newBuilder()
@@ -373,8 +400,11 @@ public final OperationFuture<Operation, Operation> addInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AddInstanceTargetPoolRequest request =
    *       AddInstanceTargetPoolRequest.newBuilder()
@@ -404,8 +434,11 @@ public final OperationFuture<Operation, Operation> addInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AddInstanceTargetPoolRequest request =
    *       AddInstanceTargetPoolRequest.newBuilder()
@@ -433,8 +466,11 @@ public final UnaryCallable<AddInstanceTargetPoolRequest, Operation> addInstanceC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, TargetPoolsScopedList> element :
@@ -460,8 +496,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AggregatedListTargetPoolsRequest request =
    *       AggregatedListTargetPoolsRequest.newBuilder()
@@ -495,8 +534,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AggregatedListTargetPoolsRequest request =
    *       AggregatedListTargetPoolsRequest.newBuilder()
@@ -529,8 +571,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   AggregatedListTargetPoolsRequest request =
    *       AggregatedListTargetPoolsRequest.newBuilder()
@@ -570,8 +615,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -603,8 +651,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   DeleteTargetPoolRequest request =
    *       DeleteTargetPoolRequest.newBuilder()
@@ -633,8 +684,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteTargetPoolR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   DeleteTargetPoolRequest request =
    *       DeleteTargetPoolRequest.newBuilder()
@@ -662,8 +716,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteTargetPoolR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   DeleteTargetPoolRequest request =
    *       DeleteTargetPoolRequest.newBuilder()
@@ -690,8 +747,11 @@ public final UnaryCallable<DeleteTargetPoolRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -723,8 +783,11 @@ public final TargetPool get(String project, String region, String targetPool) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   GetTargetPoolRequest request =
    *       GetTargetPoolRequest.newBuilder()
@@ -751,8 +814,11 @@ public final TargetPool get(GetTargetPoolRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   GetTargetPoolRequest request =
    *       GetTargetPoolRequest.newBuilder()
@@ -778,8 +844,11 @@ public final UnaryCallable<GetTargetPoolRequest, TargetPool> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -819,8 +888,11 @@ public final TargetPoolInstanceHealth getHealth(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   GetHealthTargetPoolRequest request =
    *       GetHealthTargetPoolRequest.newBuilder()
@@ -848,8 +920,11 @@ public final TargetPoolInstanceHealth getHealth(GetHealthTargetPoolRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   GetHealthTargetPoolRequest request =
    *       GetHealthTargetPoolRequest.newBuilder()
@@ -878,8 +953,11 @@ public final TargetPoolInstanceHealth getHealth(GetHealthTargetPoolRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -912,8 +990,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   InsertTargetPoolRequest request =
    *       InsertTargetPoolRequest.newBuilder()
@@ -943,8 +1024,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertTargetPoolR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   InsertTargetPoolRequest request =
    *       InsertTargetPoolRequest.newBuilder()
@@ -973,8 +1057,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertTargetPoolR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   InsertTargetPoolRequest request =
    *       InsertTargetPoolRequest.newBuilder()
@@ -1000,8 +1087,11 @@ public final UnaryCallable<InsertTargetPoolRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1028,8 +1118,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   ListTargetPoolsRequest request =
    *       ListTargetPoolsRequest.newBuilder()
@@ -1061,8 +1154,11 @@ public final ListPagedResponse list(ListTargetPoolsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   ListTargetPoolsRequest request =
    *       ListTargetPoolsRequest.newBuilder()
@@ -1093,8 +1189,11 @@ public final UnaryCallable<ListTargetPoolsRequest, ListPagedResponse> listPagedC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   ListTargetPoolsRequest request =
    *       ListTargetPoolsRequest.newBuilder()
@@ -1132,8 +1231,11 @@ public final UnaryCallable<ListTargetPoolsRequest, TargetPoolList> listCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1177,8 +1279,11 @@ public final OperationFuture<Operation, Operation> removeHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   RemoveHealthCheckTargetPoolRequest request =
    *       RemoveHealthCheckTargetPoolRequest.newBuilder()
@@ -1210,8 +1315,11 @@ public final OperationFuture<Operation, Operation> removeHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   RemoveHealthCheckTargetPoolRequest request =
    *       RemoveHealthCheckTargetPoolRequest.newBuilder()
@@ -1241,8 +1349,11 @@ public final OperationFuture<Operation, Operation> removeHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   RemoveHealthCheckTargetPoolRequest request =
    *       RemoveHealthCheckTargetPoolRequest.newBuilder()
@@ -1272,8 +1383,11 @@ public final OperationFuture<Operation, Operation> removeHealthCheckAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1316,8 +1430,11 @@ public final OperationFuture<Operation, Operation> removeInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   RemoveInstanceTargetPoolRequest request =
    *       RemoveInstanceTargetPoolRequest.newBuilder()
@@ -1349,8 +1466,11 @@ public final OperationFuture<Operation, Operation> removeInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   RemoveInstanceTargetPoolRequest request =
    *       RemoveInstanceTargetPoolRequest.newBuilder()
@@ -1380,8 +1500,11 @@ public final OperationFuture<Operation, Operation> removeInstanceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   RemoveInstanceTargetPoolRequest request =
    *       RemoveInstanceTargetPoolRequest.newBuilder()
@@ -1409,8 +1532,11 @@ public final UnaryCallable<RemoveInstanceTargetPoolRequest, Operation> removeIns
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1448,8 +1574,11 @@ public final OperationFuture<Operation, Operation> setBackupAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   SetBackupTargetPoolRequest request =
    *       SetBackupTargetPoolRequest.newBuilder()
@@ -1481,8 +1610,11 @@ public final OperationFuture<Operation, Operation> setBackupAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   SetBackupTargetPoolRequest request =
    *       SetBackupTargetPoolRequest.newBuilder()
@@ -1512,8 +1644,11 @@ public final OperationFuture<Operation, Operation> setBackupAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
    *   SetBackupTargetPoolRequest request =
    *       SetBackupTargetPoolRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsSettings.java
index 05ceb4e7c..58c676a22 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetPoolsSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetPoolsSettings.Builder targetPoolsSettingsBuilder = TargetPoolsSettings.newBuilder();
  * targetPoolsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetPoolsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetPoolsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetPoolsSettings targetPoolsSettings = targetPoolsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesClient.java
index 9d2ce49cb..4ebae3639 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetSslProxy = "targetSslProxy-879314829";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetSslProxiesSettings targetSslProxiesSettings =
  *     TargetSslProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetSslProxiesSettings targetSslProxiesSettings =
  *     TargetSslProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetSslProxiesClient targetSslProxiesClient =
@@ -162,8 +171,11 @@ public TargetSslProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -192,8 +204,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   DeleteTargetSslProxyRequest request =
    *       DeleteTargetSslProxyRequest.newBuilder()
@@ -222,8 +237,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   DeleteTargetSslProxyRequest request =
    *       DeleteTargetSslProxyRequest.newBuilder()
@@ -250,8 +268,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   DeleteTargetSslProxyRequest request =
    *       DeleteTargetSslProxyRequest.newBuilder()
@@ -277,8 +298,11 @@ public final UnaryCallable<DeleteTargetSslProxyRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -307,8 +331,11 @@ public final TargetSslProxy get(String project, String targetSslProxy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   GetTargetSslProxyRequest request =
    *       GetTargetSslProxyRequest.newBuilder()
@@ -334,8 +361,11 @@ public final TargetSslProxy get(GetTargetSslProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   GetTargetSslProxyRequest request =
    *       GetTargetSslProxyRequest.newBuilder()
@@ -360,8 +390,11 @@ public final UnaryCallable<GetTargetSslProxyRequest, TargetSslProxy> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   TargetSslProxy targetSslProxyResource = TargetSslProxy.newBuilder().build();
@@ -392,8 +425,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   InsertTargetSslProxyRequest request =
    *       InsertTargetSslProxyRequest.newBuilder()
@@ -423,8 +459,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   InsertTargetSslProxyRequest request =
    *       InsertTargetSslProxyRequest.newBuilder()
@@ -452,8 +491,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   InsertTargetSslProxyRequest request =
    *       InsertTargetSslProxyRequest.newBuilder()
@@ -478,8 +520,11 @@ public final UnaryCallable<InsertTargetSslProxyRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (TargetSslProxy element : targetSslProxiesClient.list(project).iterateAll()) {
@@ -504,8 +549,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   ListTargetSslProxiesRequest request =
    *       ListTargetSslProxiesRequest.newBuilder()
@@ -536,8 +584,11 @@ public final ListPagedResponse list(ListTargetSslProxiesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   ListTargetSslProxiesRequest request =
    *       ListTargetSslProxiesRequest.newBuilder()
@@ -568,8 +619,11 @@ public final UnaryCallable<ListTargetSslProxiesRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   ListTargetSslProxiesRequest request =
    *       ListTargetSslProxiesRequest.newBuilder()
@@ -606,8 +660,11 @@ public final UnaryCallable<ListTargetSslProxiesRequest, TargetSslProxyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -648,8 +705,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetBackendServiceTargetSslProxyRequest request =
    *       SetBackendServiceTargetSslProxyRequest.newBuilder()
@@ -680,8 +740,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetBackendServiceTargetSslProxyRequest request =
    *       SetBackendServiceTargetSslProxyRequest.newBuilder()
@@ -710,8 +773,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetBackendServiceTargetSslProxyRequest request =
    *       SetBackendServiceTargetSslProxyRequest.newBuilder()
@@ -740,8 +806,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -782,8 +851,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetCertificateMapTargetSslProxyRequest request =
    *       SetCertificateMapTargetSslProxyRequest.newBuilder()
@@ -814,8 +886,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetCertificateMapTargetSslProxyRequest request =
    *       SetCertificateMapTargetSslProxyRequest.newBuilder()
@@ -844,8 +919,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetCertificateMapTargetSslProxyRequest request =
    *       SetCertificateMapTargetSslProxyRequest.newBuilder()
@@ -874,8 +952,11 @@ public final OperationFuture<Operation, Operation> setCertificateMapAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -915,8 +996,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetProxyHeaderTargetSslProxyRequest request =
    *       SetProxyHeaderTargetSslProxyRequest.newBuilder()
@@ -947,8 +1031,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetProxyHeaderTargetSslProxyRequest request =
    *       SetProxyHeaderTargetSslProxyRequest.newBuilder()
@@ -977,8 +1064,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetProxyHeaderTargetSslProxyRequest request =
    *       SetProxyHeaderTargetSslProxyRequest.newBuilder()
@@ -1007,8 +1097,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -1049,8 +1142,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetSslCertificatesTargetSslProxyRequest request =
    *       SetSslCertificatesTargetSslProxyRequest.newBuilder()
@@ -1081,8 +1177,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetSslCertificatesTargetSslProxyRequest request =
    *       SetSslCertificatesTargetSslProxyRequest.newBuilder()
@@ -1111,8 +1210,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetSslCertificatesTargetSslProxyRequest request =
    *       SetSslCertificatesTargetSslProxyRequest.newBuilder()
@@ -1143,8 +1245,11 @@ public final OperationFuture<Operation, Operation> setSslCertificatesAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetSslProxy = "targetSslProxy-879314829";
@@ -1182,8 +1287,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetSslPolicyTargetSslProxyRequest request =
    *       SetSslPolicyTargetSslProxyRequest.newBuilder()
@@ -1215,8 +1323,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetSslPolicyTargetSslProxyRequest request =
    *       SetSslPolicyTargetSslProxyRequest.newBuilder()
@@ -1246,8 +1357,11 @@ public final OperationFuture<Operation, Operation> setSslPolicyAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
    *   SetSslPolicyTargetSslProxyRequest request =
    *       SetSslPolicyTargetSslProxyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesSettings.java
index 91b13ba92..67330c8b4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetSslProxiesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetSslProxiesSettings.Builder targetSslProxiesSettingsBuilder =
  *     TargetSslProxiesSettings.newBuilder();
  * targetSslProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetSslProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetSslProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetSslProxiesSettings targetSslProxiesSettings = targetSslProxiesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesClient.java
index 2d6464948..dec6c41d2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesClient.java
@@ -43,8 +43,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetTcpProxy = "targetTcpProxy-337144898";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetTcpProxiesSettings targetTcpProxiesSettings =
  *     TargetTcpProxiesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetTcpProxiesSettings targetTcpProxiesSettings =
  *     TargetTcpProxiesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetTcpProxiesClient targetTcpProxiesClient =
@@ -162,8 +171,11 @@ public TargetTcpProxiesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetTcpProxy = "targetTcpProxy-337144898";
@@ -192,8 +204,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   DeleteTargetTcpProxyRequest request =
    *       DeleteTargetTcpProxyRequest.newBuilder()
@@ -222,8 +237,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   DeleteTargetTcpProxyRequest request =
    *       DeleteTargetTcpProxyRequest.newBuilder()
@@ -250,8 +268,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   DeleteTargetTcpProxyRequest request =
    *       DeleteTargetTcpProxyRequest.newBuilder()
@@ -277,8 +298,11 @@ public final UnaryCallable<DeleteTargetTcpProxyRequest, Operation> deleteCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetTcpProxy = "targetTcpProxy-337144898";
@@ -307,8 +331,11 @@ public final TargetTcpProxy get(String project, String targetTcpProxy) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   GetTargetTcpProxyRequest request =
    *       GetTargetTcpProxyRequest.newBuilder()
@@ -334,8 +361,11 @@ public final TargetTcpProxy get(GetTargetTcpProxyRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   GetTargetTcpProxyRequest request =
    *       GetTargetTcpProxyRequest.newBuilder()
@@ -360,8 +390,11 @@ public final UnaryCallable<GetTargetTcpProxyRequest, TargetTcpProxy> getCallable
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   TargetTcpProxy targetTcpProxyResource = TargetTcpProxy.newBuilder().build();
@@ -392,8 +425,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   InsertTargetTcpProxyRequest request =
    *       InsertTargetTcpProxyRequest.newBuilder()
@@ -423,8 +459,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   InsertTargetTcpProxyRequest request =
    *       InsertTargetTcpProxyRequest.newBuilder()
@@ -452,8 +491,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   InsertTargetTcpProxyRequest request =
    *       InsertTargetTcpProxyRequest.newBuilder()
@@ -478,8 +520,11 @@ public final UnaryCallable<InsertTargetTcpProxyRequest, Operation> insertCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   for (TargetTcpProxy element : targetTcpProxiesClient.list(project).iterateAll()) {
@@ -504,8 +549,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   ListTargetTcpProxiesRequest request =
    *       ListTargetTcpProxiesRequest.newBuilder()
@@ -536,8 +584,11 @@ public final ListPagedResponse list(ListTargetTcpProxiesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   ListTargetTcpProxiesRequest request =
    *       ListTargetTcpProxiesRequest.newBuilder()
@@ -568,8 +619,11 @@ public final UnaryCallable<ListTargetTcpProxiesRequest, ListPagedResponse> listP
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   ListTargetTcpProxiesRequest request =
    *       ListTargetTcpProxiesRequest.newBuilder()
@@ -606,8 +660,11 @@ public final UnaryCallable<ListTargetTcpProxiesRequest, TargetTcpProxyList> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetTcpProxy = "targetTcpProxy-337144898";
@@ -648,8 +705,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   SetBackendServiceTargetTcpProxyRequest request =
    *       SetBackendServiceTargetTcpProxyRequest.newBuilder()
@@ -680,8 +740,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   SetBackendServiceTargetTcpProxyRequest request =
    *       SetBackendServiceTargetTcpProxyRequest.newBuilder()
@@ -710,8 +773,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   SetBackendServiceTargetTcpProxyRequest request =
    *       SetBackendServiceTargetTcpProxyRequest.newBuilder()
@@ -740,8 +806,11 @@ public final OperationFuture<Operation, Operation> setBackendServiceAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   String project = "project-309310695";
    *   String targetTcpProxy = "targetTcpProxy-337144898";
@@ -781,8 +850,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   SetProxyHeaderTargetTcpProxyRequest request =
    *       SetProxyHeaderTargetTcpProxyRequest.newBuilder()
@@ -813,8 +885,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   SetProxyHeaderTargetTcpProxyRequest request =
    *       SetProxyHeaderTargetTcpProxyRequest.newBuilder()
@@ -843,8 +918,11 @@ public final OperationFuture<Operation, Operation> setProxyHeaderAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
    *   SetProxyHeaderTargetTcpProxyRequest request =
    *       SetProxyHeaderTargetTcpProxyRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesSettings.java
index 4eaa81b0a..633648bf6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetTcpProxiesSettings.java
@@ -53,17 +53,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetTcpProxiesSettings.Builder targetTcpProxiesSettingsBuilder =
  *     TargetTcpProxiesSettings.newBuilder();
  * targetTcpProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetTcpProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetTcpProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetTcpProxiesSettings targetTcpProxiesSettings = targetTcpProxiesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysClient.java
index d16f971e0..76325d946 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -84,8 +87,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetVpnGatewaysSettings targetVpnGatewaysSettings =
  *     TargetVpnGatewaysSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -97,8 +103,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetVpnGatewaysSettings targetVpnGatewaysSettings =
  *     TargetVpnGatewaysSettings.newBuilder().setEndpoint(myEndpoint).build();
  * TargetVpnGatewaysClient targetVpnGatewaysClient =
@@ -164,8 +173,11 @@ public TargetVpnGatewaysStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, TargetVpnGatewaysScopedList> element :
@@ -191,8 +203,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   AggregatedListTargetVpnGatewaysRequest request =
    *       AggregatedListTargetVpnGatewaysRequest.newBuilder()
@@ -226,8 +241,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   AggregatedListTargetVpnGatewaysRequest request =
    *       AggregatedListTargetVpnGatewaysRequest.newBuilder()
@@ -260,8 +278,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   AggregatedListTargetVpnGatewaysRequest request =
    *       AggregatedListTargetVpnGatewaysRequest.newBuilder()
@@ -301,8 +322,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -335,8 +359,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   DeleteTargetVpnGatewayRequest request =
    *       DeleteTargetVpnGatewayRequest.newBuilder()
@@ -366,8 +393,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   DeleteTargetVpnGatewayRequest request =
    *       DeleteTargetVpnGatewayRequest.newBuilder()
@@ -395,8 +425,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   DeleteTargetVpnGatewayRequest request =
    *       DeleteTargetVpnGatewayRequest.newBuilder()
@@ -423,8 +456,11 @@ public final UnaryCallable<DeleteTargetVpnGatewayRequest, Operation> deleteCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -456,8 +492,11 @@ public final TargetVpnGateway get(String project, String region, String targetVp
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   GetTargetVpnGatewayRequest request =
    *       GetTargetVpnGatewayRequest.newBuilder()
@@ -484,8 +523,11 @@ public final TargetVpnGateway get(GetTargetVpnGatewayRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   GetTargetVpnGatewayRequest request =
    *       GetTargetVpnGatewayRequest.newBuilder()
@@ -512,8 +554,11 @@ public final UnaryCallable<GetTargetVpnGatewayRequest, TargetVpnGateway> getCall
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -547,8 +592,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   InsertTargetVpnGatewayRequest request =
    *       InsertTargetVpnGatewayRequest.newBuilder()
@@ -579,8 +627,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   InsertTargetVpnGatewayRequest request =
    *       InsertTargetVpnGatewayRequest.newBuilder()
@@ -609,8 +660,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   InsertTargetVpnGatewayRequest request =
    *       InsertTargetVpnGatewayRequest.newBuilder()
@@ -636,8 +690,11 @@ public final UnaryCallable<InsertTargetVpnGatewayRequest, Operation> insertCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -664,8 +721,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   ListTargetVpnGatewaysRequest request =
    *       ListTargetVpnGatewaysRequest.newBuilder()
@@ -697,8 +757,11 @@ public final ListPagedResponse list(ListTargetVpnGatewaysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   ListTargetVpnGatewaysRequest request =
    *       ListTargetVpnGatewaysRequest.newBuilder()
@@ -730,8 +793,11 @@ public final UnaryCallable<ListTargetVpnGatewaysRequest, ListPagedResponse> list
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
    *   ListTargetVpnGatewaysRequest request =
    *       ListTargetVpnGatewaysRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysSettings.java
index f8a380fac..554687d1d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/TargetVpnGatewaysSettings.java
@@ -54,17 +54,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetVpnGatewaysSettings.Builder targetVpnGatewaysSettingsBuilder =
  *     TargetVpnGatewaysSettings.newBuilder();
  * targetVpnGatewaysSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetVpnGatewaysSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetVpnGatewaysSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetVpnGatewaysSettings targetVpnGatewaysSettings = targetVpnGatewaysSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsClient.java
index 2ca72f415..19246c643 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
  *   String project = "project-309310695";
  *   String urlMap = "urlMap-836780691";
@@ -82,8 +85,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * UrlMapsSettings urlMapsSettings =
  *     UrlMapsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -94,8 +100,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * UrlMapsSettings urlMapsSettings = UrlMapsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * UrlMapsClient urlMapsClient = UrlMapsClient.create(urlMapsSettings);
  * }</pre>
@@ -158,8 +167,11 @@ public UrlMapsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, UrlMapsScopedList> element :
@@ -186,8 +198,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   AggregatedListUrlMapsRequest request =
    *       AggregatedListUrlMapsRequest.newBuilder()
@@ -221,8 +236,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListUrlMapsReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   AggregatedListUrlMapsRequest request =
    *       AggregatedListUrlMapsRequest.newBuilder()
@@ -256,8 +274,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListUrlMapsReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   AggregatedListUrlMapsRequest request =
    *       AggregatedListUrlMapsRequest.newBuilder()
@@ -296,8 +317,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListUrlMapsReq
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String urlMap = "urlMap-836780691";
@@ -322,8 +346,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(String project, S
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   DeleteUrlMapRequest request =
    *       DeleteUrlMapRequest.newBuilder()
@@ -351,8 +378,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteUrlMapReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   DeleteUrlMapRequest request =
    *       DeleteUrlMapRequest.newBuilder()
@@ -379,8 +409,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteUrlMapReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   DeleteUrlMapRequest request =
    *       DeleteUrlMapRequest.newBuilder()
@@ -406,8 +439,11 @@ public final UnaryCallable<DeleteUrlMapRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String urlMap = "urlMap-836780691";
@@ -433,8 +469,11 @@ public final UrlMap get(String project, String urlMap) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   GetUrlMapRequest request =
    *       GetUrlMapRequest.newBuilder()
@@ -460,8 +499,11 @@ public final UrlMap get(GetUrlMapRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   GetUrlMapRequest request =
    *       GetUrlMapRequest.newBuilder()
@@ -485,8 +527,11 @@ public final UnaryCallable<GetUrlMapRequest, UrlMap> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   UrlMap urlMapResource = UrlMap.newBuilder().build();
@@ -515,8 +560,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   InsertUrlMapRequest request =
    *       InsertUrlMapRequest.newBuilder()
@@ -544,8 +592,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertUrlMapReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   InsertUrlMapRequest request =
    *       InsertUrlMapRequest.newBuilder()
@@ -572,8 +623,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertUrlMapReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   InsertUrlMapRequest request =
    *       InsertUrlMapRequest.newBuilder()
@@ -600,8 +654,11 @@ public final UnaryCallable<InsertUrlMapRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String urlMap = "urlMap-836780691";
@@ -637,8 +694,11 @@ public final OperationFuture<Operation, Operation> invalidateCacheAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   InvalidateCacheUrlMapRequest request =
    *       InvalidateCacheUrlMapRequest.newBuilder()
@@ -670,8 +730,11 @@ public final OperationFuture<Operation, Operation> invalidateCacheAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   InvalidateCacheUrlMapRequest request =
    *       InvalidateCacheUrlMapRequest.newBuilder()
@@ -701,8 +764,11 @@ public final OperationFuture<Operation, Operation> invalidateCacheAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   InvalidateCacheUrlMapRequest request =
    *       InvalidateCacheUrlMapRequest.newBuilder()
@@ -728,8 +794,11 @@ public final UnaryCallable<InvalidateCacheUrlMapRequest, Operation> invalidateCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   for (UrlMap element : urlMapsClient.list(project).iterateAll()) {
@@ -753,8 +822,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   ListUrlMapsRequest request =
    *       ListUrlMapsRequest.newBuilder()
@@ -785,8 +857,11 @@ public final ListPagedResponse list(ListUrlMapsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   ListUrlMapsRequest request =
    *       ListUrlMapsRequest.newBuilder()
@@ -816,8 +891,11 @@ public final UnaryCallable<ListUrlMapsRequest, ListPagedResponse> listPagedCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   ListUrlMapsRequest request =
    *       ListUrlMapsRequest.newBuilder()
@@ -855,8 +933,11 @@ public final UnaryCallable<ListUrlMapsRequest, UrlMapList> listCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String urlMap = "urlMap-836780691";
@@ -889,8 +970,11 @@ public final OperationFuture<Operation, Operation> patchAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   PatchUrlMapRequest request =
    *       PatchUrlMapRequest.newBuilder()
@@ -920,8 +1004,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchUrlMapRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   PatchUrlMapRequest request =
    *       PatchUrlMapRequest.newBuilder()
@@ -950,8 +1037,11 @@ public final OperationFuture<Operation, Operation> patchAsync(PatchUrlMapRequest
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   PatchUrlMapRequest request =
    *       PatchUrlMapRequest.newBuilder()
@@ -977,8 +1067,11 @@ public final UnaryCallable<PatchUrlMapRequest, Operation> patchCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String urlMap = "urlMap-836780691";
@@ -1010,8 +1103,11 @@ public final OperationFuture<Operation, Operation> updateAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   UpdateUrlMapRequest request =
    *       UpdateUrlMapRequest.newBuilder()
@@ -1040,8 +1136,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateUrlMapReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   UpdateUrlMapRequest request =
    *       UpdateUrlMapRequest.newBuilder()
@@ -1069,8 +1168,11 @@ public final OperationFuture<Operation, Operation> updateAsync(UpdateUrlMapReque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   UpdateUrlMapRequest request =
    *       UpdateUrlMapRequest.newBuilder()
@@ -1097,8 +1199,11 @@ public final UnaryCallable<UpdateUrlMapRequest, Operation> updateCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   String project = "project-309310695";
    *   String urlMap = "urlMap-836780691";
@@ -1133,8 +1238,11 @@ public final UrlMapsValidateResponse validate(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   ValidateUrlMapRequest request =
    *       ValidateUrlMapRequest.newBuilder()
@@ -1161,8 +1269,11 @@ public final UrlMapsValidateResponse validate(ValidateUrlMapRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
    *   ValidateUrlMapRequest request =
    *       ValidateUrlMapRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsSettings.java
index 08aa995d1..3337642f5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/UrlMapsSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * UrlMapsSettings.Builder urlMapsSettingsBuilder = UrlMapsSettings.newBuilder();
  * urlMapsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         urlMapsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         urlMapsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * UrlMapsSettings urlMapsSettings = urlMapsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysClient.java
index 9c1e70ce0..e0e74c0d3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnGatewaysSettings vpnGatewaysSettings =
  *     VpnGatewaysSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnGatewaysSettings vpnGatewaysSettings =
  *     VpnGatewaysSettings.newBuilder().setEndpoint(myEndpoint).build();
  * VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create(vpnGatewaysSettings);
@@ -160,8 +169,11 @@ public VpnGatewaysStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, VpnGatewaysScopedList> element :
@@ -187,8 +199,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   AggregatedListVpnGatewaysRequest request =
    *       AggregatedListVpnGatewaysRequest.newBuilder()
@@ -222,8 +237,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   AggregatedListVpnGatewaysRequest request =
    *       AggregatedListVpnGatewaysRequest.newBuilder()
@@ -256,8 +274,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   AggregatedListVpnGatewaysRequest request =
    *       AggregatedListVpnGatewaysRequest.newBuilder()
@@ -297,8 +318,11 @@ public final AggregatedListPagedResponse aggregatedList(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -330,8 +354,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   DeleteVpnGatewayRequest request =
    *       DeleteVpnGatewayRequest.newBuilder()
@@ -360,8 +387,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteVpnGatewayR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   DeleteVpnGatewayRequest request =
    *       DeleteVpnGatewayRequest.newBuilder()
@@ -389,8 +419,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteVpnGatewayR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   DeleteVpnGatewayRequest request =
    *       DeleteVpnGatewayRequest.newBuilder()
@@ -417,8 +450,11 @@ public final UnaryCallable<DeleteVpnGatewayRequest, Operation> deleteCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -450,8 +486,11 @@ public final VpnGateway get(String project, String region, String vpnGateway) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   GetVpnGatewayRequest request =
    *       GetVpnGatewayRequest.newBuilder()
@@ -478,8 +517,11 @@ public final VpnGateway get(GetVpnGatewayRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   GetVpnGatewayRequest request =
    *       GetVpnGatewayRequest.newBuilder()
@@ -504,8 +546,11 @@ public final UnaryCallable<GetVpnGatewayRequest, VpnGateway> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -538,8 +583,11 @@ public final VpnGatewaysGetStatusResponse getStatus(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   GetStatusVpnGatewayRequest request =
    *       GetStatusVpnGatewayRequest.newBuilder()
@@ -565,8 +613,11 @@ public final VpnGatewaysGetStatusResponse getStatus(GetStatusVpnGatewayRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   GetStatusVpnGatewayRequest request =
    *       GetStatusVpnGatewayRequest.newBuilder()
@@ -594,8 +645,11 @@ public final VpnGatewaysGetStatusResponse getStatus(GetStatusVpnGatewayRequest r
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -628,8 +682,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   InsertVpnGatewayRequest request =
    *       InsertVpnGatewayRequest.newBuilder()
@@ -659,8 +716,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertVpnGatewayR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   InsertVpnGatewayRequest request =
    *       InsertVpnGatewayRequest.newBuilder()
@@ -689,8 +749,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertVpnGatewayR
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   InsertVpnGatewayRequest request =
    *       InsertVpnGatewayRequest.newBuilder()
@@ -716,8 +779,11 @@ public final UnaryCallable<InsertVpnGatewayRequest, Operation> insertCallable()
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -744,8 +810,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   ListVpnGatewaysRequest request =
    *       ListVpnGatewaysRequest.newBuilder()
@@ -777,8 +846,11 @@ public final ListPagedResponse list(ListVpnGatewaysRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   ListVpnGatewaysRequest request =
    *       ListVpnGatewaysRequest.newBuilder()
@@ -809,8 +881,11 @@ public final UnaryCallable<ListVpnGatewaysRequest, ListPagedResponse> listPagedC
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   ListVpnGatewaysRequest request =
    *       ListVpnGatewaysRequest.newBuilder()
@@ -849,8 +924,11 @@ public final UnaryCallable<ListVpnGatewaysRequest, VpnGatewayList> listCallable(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -893,8 +971,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   SetLabelsVpnGatewayRequest request =
    *       SetLabelsVpnGatewayRequest.newBuilder()
@@ -926,8 +1007,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   SetLabelsVpnGatewayRequest request =
    *       SetLabelsVpnGatewayRequest.newBuilder()
@@ -957,8 +1041,11 @@ public final OperationFuture<Operation, Operation> setLabelsAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   SetLabelsVpnGatewayRequest request =
    *       SetLabelsVpnGatewayRequest.newBuilder()
@@ -985,8 +1072,11 @@ public final UnaryCallable<SetLabelsVpnGatewayRequest, Operation> setLabelsCalla
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -1027,8 +1117,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   TestIamPermissionsVpnGatewayRequest request =
    *       TestIamPermissionsVpnGatewayRequest.newBuilder()
@@ -1056,8 +1149,11 @@ public final TestPermissionsResponse testIamPermissions(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
    *   TestIamPermissionsVpnGatewayRequest request =
    *       TestIamPermissionsVpnGatewayRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysSettings.java
index f73a06759..3cdeba69f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnGatewaysSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnGatewaysSettings.Builder vpnGatewaysSettingsBuilder = VpnGatewaysSettings.newBuilder();
  * vpnGatewaysSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         vpnGatewaysSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         vpnGatewaysSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * VpnGatewaysSettings vpnGatewaysSettings = vpnGatewaysSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsClient.java
index b45412d18..94a29393e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsClient.java
@@ -44,8 +44,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -83,8 +86,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnTunnelsSettings vpnTunnelsSettings =
  *     VpnTunnelsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -95,8 +101,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnTunnelsSettings vpnTunnelsSettings =
  *     VpnTunnelsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create(vpnTunnelsSettings);
@@ -159,8 +168,11 @@ public VpnTunnelsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   String project = "project-309310695";
    *   for (Map.Entry<String, VpnTunnelsScopedList> element :
@@ -186,8 +198,11 @@ public final AggregatedListPagedResponse aggregatedList(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   AggregatedListVpnTunnelsRequest request =
    *       AggregatedListVpnTunnelsRequest.newBuilder()
@@ -220,8 +235,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListVpnTunnels
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   AggregatedListVpnTunnelsRequest request =
    *       AggregatedListVpnTunnelsRequest.newBuilder()
@@ -254,8 +272,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListVpnTunnels
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   AggregatedListVpnTunnelsRequest request =
    *       AggregatedListVpnTunnelsRequest.newBuilder()
@@ -294,8 +315,11 @@ public final AggregatedListPagedResponse aggregatedList(AggregatedListVpnTunnels
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -327,8 +351,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   DeleteVpnTunnelRequest request =
    *       DeleteVpnTunnelRequest.newBuilder()
@@ -357,8 +384,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteVpnTunnelRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   DeleteVpnTunnelRequest request =
    *       DeleteVpnTunnelRequest.newBuilder()
@@ -386,8 +416,11 @@ public final OperationFuture<Operation, Operation> deleteAsync(DeleteVpnTunnelRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   DeleteVpnTunnelRequest request =
    *       DeleteVpnTunnelRequest.newBuilder()
@@ -414,8 +447,11 @@ public final UnaryCallable<DeleteVpnTunnelRequest, Operation> deleteCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -447,8 +483,11 @@ public final VpnTunnel get(String project, String region, String vpnTunnel) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   GetVpnTunnelRequest request =
    *       GetVpnTunnelRequest.newBuilder()
@@ -475,8 +514,11 @@ public final VpnTunnel get(GetVpnTunnelRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   GetVpnTunnelRequest request =
    *       GetVpnTunnelRequest.newBuilder()
@@ -502,8 +544,11 @@ public final UnaryCallable<GetVpnTunnelRequest, VpnTunnel> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -536,8 +581,11 @@ public final OperationFuture<Operation, Operation> insertAsync(
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   InsertVpnTunnelRequest request =
    *       InsertVpnTunnelRequest.newBuilder()
@@ -567,8 +615,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertVpnTunnelRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   InsertVpnTunnelRequest request =
    *       InsertVpnTunnelRequest.newBuilder()
@@ -597,8 +648,11 @@ public final OperationFuture<Operation, Operation> insertAsync(InsertVpnTunnelRe
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   InsertVpnTunnelRequest request =
    *       InsertVpnTunnelRequest.newBuilder()
@@ -624,8 +678,11 @@ public final UnaryCallable<InsertVpnTunnelRequest, Operation> insertCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   String project = "project-309310695";
    *   String region = "region-934795532";
@@ -652,8 +709,11 @@ public final ListPagedResponse list(String project, String region) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   ListVpnTunnelsRequest request =
    *       ListVpnTunnelsRequest.newBuilder()
@@ -685,8 +745,11 @@ public final ListPagedResponse list(ListVpnTunnelsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   ListVpnTunnelsRequest request =
    *       ListVpnTunnelsRequest.newBuilder()
@@ -717,8 +780,11 @@ public final UnaryCallable<ListVpnTunnelsRequest, ListPagedResponse> listPagedCa
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
    *   ListVpnTunnelsRequest request =
    *       ListVpnTunnelsRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsSettings.java
index ffdb1a897..bbed25ed7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/VpnTunnelsSettings.java
@@ -54,16 +54,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnTunnelsSettings.Builder vpnTunnelsSettingsBuilder = VpnTunnelsSettings.newBuilder();
  * vpnTunnelsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         vpnTunnelsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         vpnTunnelsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * VpnTunnelsSettings vpnTunnelsSettings = vpnTunnelsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsClient.java
index 40557db3f..28d16dca3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -79,8 +82,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZoneOperationsSettings zoneOperationsSettings =
  *     ZoneOperationsSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -91,8 +97,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZoneOperationsSettings zoneOperationsSettings =
  *     ZoneOperationsSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create(zoneOperationsSettings);
@@ -157,8 +166,11 @@ public ZoneOperationsStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -189,8 +201,11 @@ public final DeleteZoneOperationResponse delete(String project, String zone, Str
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   DeleteZoneOperationRequest request =
    *       DeleteZoneOperationRequest.newBuilder()
@@ -216,8 +231,11 @@ public final DeleteZoneOperationResponse delete(DeleteZoneOperationRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   DeleteZoneOperationRequest request =
    *       DeleteZoneOperationRequest.newBuilder()
@@ -244,8 +262,11 @@ public final DeleteZoneOperationResponse delete(DeleteZoneOperationRequest reque
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -276,8 +297,11 @@ public final Operation get(String project, String zone, String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   GetZoneOperationRequest request =
    *       GetZoneOperationRequest.newBuilder()
@@ -303,8 +327,11 @@ public final Operation get(GetZoneOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   GetZoneOperationRequest request =
    *       GetZoneOperationRequest.newBuilder()
@@ -329,8 +356,11 @@ public final UnaryCallable<GetZoneOperationRequest, Operation> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -357,8 +387,11 @@ public final ListPagedResponse list(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   ListZoneOperationsRequest request =
    *       ListZoneOperationsRequest.newBuilder()
@@ -390,8 +423,11 @@ public final ListPagedResponse list(ListZoneOperationsRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   ListZoneOperationsRequest request =
    *       ListZoneOperationsRequest.newBuilder()
@@ -422,8 +458,11 @@ public final UnaryCallable<ListZoneOperationsRequest, ListPagedResponse> listPag
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   ListZoneOperationsRequest request =
    *       ListZoneOperationsRequest.newBuilder()
@@ -468,8 +507,11 @@ public final UnaryCallable<ListZoneOperationsRequest, OperationList> listCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -507,8 +549,11 @@ public final Operation wait(String project, String zone, String operation) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   WaitZoneOperationRequest request =
    *       WaitZoneOperationRequest.newBuilder()
@@ -541,8 +586,11 @@ public final Operation wait(WaitZoneOperationRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
    *   WaitZoneOperationRequest request =
    *       WaitZoneOperationRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsSettings.java
index 015ea1e45..07422ea3d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZoneOperationsSettings.java
@@ -52,17 +52,17 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZoneOperationsSettings.Builder zoneOperationsSettingsBuilder =
  *     ZoneOperationsSettings.newBuilder();
  * zoneOperationsSettingsBuilder
  *     .deleteSettings()
  *     .setRetrySettings(
- *         zoneOperationsSettingsBuilder
- *             .deleteSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         zoneOperationsSettingsBuilder.deleteSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ZoneOperationsSettings zoneOperationsSettings = zoneOperationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesClient.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesClient.java
index 2d80bedba..f006a76e3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesClient.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesClient.java
@@ -40,8 +40,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ZonesClient zonesClient = ZonesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -78,8 +81,11 @@
  * <p>To customize credentials:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZonesSettings zonesSettings =
  *     ZonesSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -90,8 +96,11 @@
  * <p>To customize the endpoint:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZonesSettings zonesSettings = ZonesSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ZonesClient zonesClient = ZonesClient.create(zonesSettings);
  * }</pre>
@@ -153,8 +162,11 @@ public ZonesStub getStub() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   String project = "project-309310695";
    *   String zone = "zone3744684";
@@ -178,8 +190,11 @@ public final Zone get(String project, String zone) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   GetZoneRequest request =
    *       GetZoneRequest.newBuilder()
@@ -204,8 +219,11 @@ public final Zone get(GetZoneRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   GetZoneRequest request =
    *       GetZoneRequest.newBuilder()
@@ -229,8 +247,11 @@ public final UnaryCallable<GetZoneRequest, Zone> getCallable() {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   String project = "project-309310695";
    *   for (Zone element : zonesClient.list(project).iterateAll()) {
@@ -254,8 +275,11 @@ public final ListPagedResponse list(String project) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   ListZonesRequest request =
    *       ListZonesRequest.newBuilder()
@@ -286,8 +310,11 @@ public final ListPagedResponse list(ListZonesRequest request) {
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   ListZonesRequest request =
    *       ListZonesRequest.newBuilder()
@@ -317,8 +344,11 @@ public final UnaryCallable<ListZonesRequest, ListPagedResponse> listPagedCallabl
    * <p>Sample code:
    *
    * <pre>{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ZonesClient zonesClient = ZonesClient.create()) {
    *   ListZonesRequest request =
    *       ListZonesRequest.newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesSettings.java
index d25b05e46..61dc8d0e6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/ZonesSettings.java
@@ -52,16 +52,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZonesSettings.Builder zonesSettingsBuilder = ZonesSettings.newBuilder();
  * zonesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         zonesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         zonesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ZonesSettings zonesSettings = zonesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/package-info.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/package-info.java
index c135a85be..01b9ea19f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/package-info.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/package-info.java
@@ -26,8 +26,11 @@
  * <p>Sample for AcceleratorTypesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (AcceleratorTypesClient acceleratorTypesClient = AcceleratorTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -43,8 +46,11 @@
  * <p>Sample for AddressesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (AddressesClient addressesClient = AddressesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -60,8 +66,11 @@
  * <p>Sample for AutoscalersClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (AutoscalersClient autoscalersClient = AutoscalersClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -77,8 +86,11 @@
  * <p>Sample for BackendBucketsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (BackendBucketsClient backendBucketsClient = BackendBucketsClient.create()) {
  *   String project = "project-309310695";
  *   String backendBucket = "backendBucket713751966";
@@ -93,8 +105,11 @@
  * <p>Sample for BackendServicesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (BackendServicesClient backendServicesClient = BackendServicesClient.create()) {
  *   String project = "project-309310695";
  *   String backendService = "backendService-1884714623";
@@ -109,8 +124,11 @@
  * <p>Sample for DiskTypesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (DiskTypesClient diskTypesClient = DiskTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -126,8 +144,11 @@
  * <p>Sample for DisksClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (DisksClient disksClient = DisksClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -143,8 +164,11 @@
  * <p>Sample for ExternalVpnGatewaysClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ExternalVpnGatewaysClient externalVpnGatewaysClient = ExternalVpnGatewaysClient.create()) {
  *   String project = "project-309310695";
  *   String externalVpnGateway = "externalVpnGateway-1140582181";
@@ -159,8 +183,11 @@
  * <p>Sample for FirewallPoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (FirewallPoliciesClient firewallPoliciesClient = FirewallPoliciesClient.create()) {
  *   String firewallPolicy = "firewallPolicy1819692626";
  *   FirewallPolicy response = firewallPoliciesClient.get(firewallPolicy);
@@ -174,8 +201,11 @@
  * <p>Sample for FirewallsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (FirewallsClient firewallsClient = FirewallsClient.create()) {
  *   String project = "project-309310695";
  *   String firewall = "firewall-562725632";
@@ -190,8 +220,11 @@
  * <p>Sample for ForwardingRulesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ForwardingRulesClient forwardingRulesClient = ForwardingRulesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -207,8 +240,11 @@
  * <p>Sample for GlobalAddressesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalAddressesClient globalAddressesClient = GlobalAddressesClient.create()) {
  *   String project = "project-309310695";
  *   String address = "address-1147692044";
@@ -223,8 +259,11 @@
  * <p>Sample for GlobalForwardingRulesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalForwardingRulesClient globalForwardingRulesClient =
  *     GlobalForwardingRulesClient.create()) {
  *   String project = "project-309310695";
@@ -240,8 +279,11 @@
  * <p>Sample for GlobalNetworkEndpointGroupsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalNetworkEndpointGroupsClient globalNetworkEndpointGroupsClient =
  *     GlobalNetworkEndpointGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -258,8 +300,11 @@
  * <p>Sample for GlobalOperationsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalOperationsClient globalOperationsClient = GlobalOperationsClient.create()) {
  *   String project = "project-309310695";
  *   String operation = "operation1662702951";
@@ -274,8 +319,11 @@
  * <p>Sample for GlobalOrganizationOperationsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalOrganizationOperationsClient globalOrganizationOperationsClient =
  *     GlobalOrganizationOperationsClient.create()) {
  *   String operation = "operation1662702951";
@@ -291,8 +339,11 @@
  * <p>Sample for GlobalPublicDelegatedPrefixesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (GlobalPublicDelegatedPrefixesClient globalPublicDelegatedPrefixesClient =
  *     GlobalPublicDelegatedPrefixesClient.create()) {
  *   String project = "project-309310695";
@@ -309,8 +360,11 @@
  * <p>Sample for HealthChecksClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (HealthChecksClient healthChecksClient = HealthChecksClient.create()) {
  *   String project = "project-309310695";
  *   String healthCheck = "healthCheck-1938093044";
@@ -325,8 +379,11 @@
  * <p>Sample for ImageFamilyViewsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ImageFamilyViewsClient imageFamilyViewsClient = ImageFamilyViewsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -342,8 +399,11 @@
  * <p>Sample for ImagesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ImagesClient imagesClient = ImagesClient.create()) {
  *   String project = "project-309310695";
  *   String image = "image100313435";
@@ -358,8 +418,11 @@
  * <p>Sample for InstanceGroupManagersClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstanceGroupManagersClient instanceGroupManagersClient =
  *     InstanceGroupManagersClient.create()) {
  *   String project = "project-309310695";
@@ -377,8 +440,11 @@
  * <p>Sample for InstanceGroupsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstanceGroupsClient instanceGroupsClient = InstanceGroupsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -394,8 +460,11 @@
  * <p>Sample for InstanceTemplatesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
  *   String project = "project-309310695";
  *   String instanceTemplate = "instanceTemplate1009541167";
@@ -410,8 +479,11 @@
  * <p>Sample for InstancesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InstancesClient instancesClient = InstancesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -427,8 +499,11 @@
  * <p>Sample for InterconnectAttachmentsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InterconnectAttachmentsClient interconnectAttachmentsClient =
  *     InterconnectAttachmentsClient.create()) {
  *   String project = "project-309310695";
@@ -446,8 +521,11 @@
  * <p>Sample for InterconnectLocationsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InterconnectLocationsClient interconnectLocationsClient =
  *     InterconnectLocationsClient.create()) {
  *   String project = "project-309310695";
@@ -464,8 +542,11 @@
  * <p>Sample for InterconnectsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (InterconnectsClient interconnectsClient = InterconnectsClient.create()) {
  *   String project = "project-309310695";
  *   String interconnect = "interconnect-849140594";
@@ -480,8 +561,11 @@
  * <p>Sample for LicenseCodesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (LicenseCodesClient licenseCodesClient = LicenseCodesClient.create()) {
  *   String project = "project-309310695";
  *   String licenseCode = "licenseCode-641557042";
@@ -496,8 +580,11 @@
  * <p>Sample for LicensesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (LicensesClient licensesClient = LicensesClient.create()) {
  *   String project = "project-309310695";
  *   String license = "license166757441";
@@ -512,8 +599,11 @@
  * <p>Sample for MachineImagesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (MachineImagesClient machineImagesClient = MachineImagesClient.create()) {
  *   String project = "project-309310695";
  *   String machineImage = "machineImage1817774420";
@@ -528,8 +618,11 @@
  * <p>Sample for MachineTypesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (MachineTypesClient machineTypesClient = MachineTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -545,8 +638,11 @@
  * <p>Sample for NetworkEdgeSecurityServicesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworkEdgeSecurityServicesClient networkEdgeSecurityServicesClient =
  *     NetworkEdgeSecurityServicesClient.create()) {
  *   String project = "project-309310695";
@@ -564,8 +660,11 @@
  * <p>Sample for NetworkEndpointGroupsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworkEndpointGroupsClient networkEndpointGroupsClient =
  *     NetworkEndpointGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -583,8 +682,11 @@
  * <p>Sample for NetworkFirewallPoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworkFirewallPoliciesClient networkFirewallPoliciesClient =
  *     NetworkFirewallPoliciesClient.create()) {
  *   String project = "project-309310695";
@@ -600,8 +702,11 @@
  * <p>Sample for NetworksClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NetworksClient networksClient = NetworksClient.create()) {
  *   String project = "project-309310695";
  *   String network = "network1843485230";
@@ -616,8 +721,11 @@
  * <p>Sample for NodeGroupsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NodeGroupsClient nodeGroupsClient = NodeGroupsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -633,8 +741,11 @@
  * <p>Sample for NodeTemplatesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NodeTemplatesClient nodeTemplatesClient = NodeTemplatesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -650,8 +761,11 @@
  * <p>Sample for NodeTypesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (NodeTypesClient nodeTypesClient = NodeTypesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -667,8 +781,11 @@
  * <p>Sample for PacketMirroringsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (PacketMirroringsClient packetMirroringsClient = PacketMirroringsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -684,8 +801,11 @@
  * <p>Sample for ProjectsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ProjectsClient projectsClient = ProjectsClient.create()) {
  *   String project = "project-309310695";
  *   Project response = projectsClient.get(project);
@@ -699,8 +819,11 @@
  * <p>Sample for PublicAdvertisedPrefixesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (PublicAdvertisedPrefixesClient publicAdvertisedPrefixesClient =
  *     PublicAdvertisedPrefixesClient.create()) {
  *   String project = "project-309310695";
@@ -717,8 +840,11 @@
  * <p>Sample for PublicDelegatedPrefixesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (PublicDelegatedPrefixesClient publicDelegatedPrefixesClient =
  *     PublicDelegatedPrefixesClient.create()) {
  *   String project = "project-309310695";
@@ -736,8 +862,11 @@
  * <p>Sample for RegionAutoscalersClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionAutoscalersClient regionAutoscalersClient = RegionAutoscalersClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -753,8 +882,11 @@
  * <p>Sample for RegionBackendServicesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionBackendServicesClient regionBackendServicesClient =
  *     RegionBackendServicesClient.create()) {
  *   String project = "project-309310695";
@@ -771,8 +903,11 @@
  * <p>Sample for RegionCommitmentsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionCommitmentsClient regionCommitmentsClient = RegionCommitmentsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -788,8 +923,11 @@
  * <p>Sample for RegionDiskTypesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionDiskTypesClient regionDiskTypesClient = RegionDiskTypesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -805,8 +943,11 @@
  * <p>Sample for RegionDisksClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -822,8 +963,11 @@
  * <p>Sample for RegionHealthCheckServicesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionHealthCheckServicesClient regionHealthCheckServicesClient =
  *     RegionHealthCheckServicesClient.create()) {
  *   String project = "project-309310695";
@@ -841,8 +985,11 @@
  * <p>Sample for RegionHealthChecksClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -858,8 +1005,11 @@
  * <p>Sample for RegionInstanceGroupManagersClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionInstanceGroupManagersClient regionInstanceGroupManagersClient =
  *     RegionInstanceGroupManagersClient.create()) {
  *   String project = "project-309310695";
@@ -877,8 +1027,11 @@
  * <p>Sample for RegionInstanceGroupsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionInstanceGroupsClient regionInstanceGroupsClient =
  *     RegionInstanceGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -895,8 +1048,11 @@
  * <p>Sample for RegionInstancesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionInstancesClient regionInstancesClient = RegionInstancesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -916,8 +1072,11 @@
  * <p>Sample for RegionNetworkEndpointGroupsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionNetworkEndpointGroupsClient regionNetworkEndpointGroupsClient =
  *     RegionNetworkEndpointGroupsClient.create()) {
  *   String project = "project-309310695";
@@ -935,8 +1094,11 @@
  * <p>Sample for RegionNetworkFirewallPoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionNetworkFirewallPoliciesClient regionNetworkFirewallPoliciesClient =
  *     RegionNetworkFirewallPoliciesClient.create()) {
  *   String project = "project-309310695";
@@ -954,8 +1116,11 @@
  * <p>Sample for RegionNotificationEndpointsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionNotificationEndpointsClient regionNotificationEndpointsClient =
  *     RegionNotificationEndpointsClient.create()) {
  *   String project = "project-309310695";
@@ -973,8 +1138,11 @@
  * <p>Sample for RegionOperationsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionOperationsClient regionOperationsClient = RegionOperationsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -991,8 +1159,11 @@
  * <p>Sample for RegionSecurityPoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionSecurityPoliciesClient regionSecurityPoliciesClient =
  *     RegionSecurityPoliciesClient.create()) {
  *   String project = "project-309310695";
@@ -1009,8 +1180,11 @@
  * <p>Sample for RegionSslCertificatesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionSslCertificatesClient regionSslCertificatesClient =
  *     RegionSslCertificatesClient.create()) {
  *   String project = "project-309310695";
@@ -1027,8 +1201,11 @@
  * <p>Sample for RegionTargetHttpProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionTargetHttpProxiesClient regionTargetHttpProxiesClient =
  *     RegionTargetHttpProxiesClient.create()) {
  *   String project = "project-309310695";
@@ -1046,8 +1223,11 @@
  * <p>Sample for RegionTargetHttpsProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionTargetHttpsProxiesClient regionTargetHttpsProxiesClient =
  *     RegionTargetHttpsProxiesClient.create()) {
  *   String project = "project-309310695";
@@ -1065,8 +1245,11 @@
  * <p>Sample for RegionUrlMapsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionUrlMapsClient regionUrlMapsClient = RegionUrlMapsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1082,8 +1265,11 @@
  * <p>Sample for RegionsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RegionsClient regionsClient = RegionsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1098,8 +1284,11 @@
  * <p>Sample for ReservationsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ReservationsClient reservationsClient = ReservationsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -1115,8 +1304,11 @@
  * <p>Sample for ResourcePoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ResourcePoliciesClient resourcePoliciesClient = ResourcePoliciesClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1132,8 +1324,11 @@
  * <p>Sample for RoutersClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RoutersClient routersClient = RoutersClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1149,8 +1344,11 @@
  * <p>Sample for RoutesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (RoutesClient routesClient = RoutesClient.create()) {
  *   String project = "project-309310695";
  *   String route = "route108704329";
@@ -1165,8 +1363,11 @@
  * <p>Sample for SecurityPoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SecurityPoliciesClient securityPoliciesClient = SecurityPoliciesClient.create()) {
  *   String project = "project-309310695";
  *   String securityPolicy = "securityPolicy-788621166";
@@ -1181,8 +1382,11 @@
  * <p>Sample for ServiceAttachmentsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ServiceAttachmentsClient serviceAttachmentsClient = ServiceAttachmentsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1198,8 +1402,11 @@
  * <p>Sample for SnapshotsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
  *   String project = "project-309310695";
  *   String snapshot = "snapshot284874180";
@@ -1214,8 +1421,11 @@
  * <p>Sample for SslCertificatesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SslCertificatesClient sslCertificatesClient = SslCertificatesClient.create()) {
  *   String project = "project-309310695";
  *   String sslCertificate = "sslCertificate-1304941589";
@@ -1230,8 +1440,11 @@
  * <p>Sample for SslPoliciesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SslPoliciesClient sslPoliciesClient = SslPoliciesClient.create()) {
  *   String project = "project-309310695";
  *   String sslPolicy = "sslPolicy618174046";
@@ -1246,8 +1459,11 @@
  * <p>Sample for SubnetworksClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (SubnetworksClient subnetworksClient = SubnetworksClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1263,8 +1479,11 @@
  * <p>Sample for TargetGrpcProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetGrpcProxiesClient targetGrpcProxiesClient = TargetGrpcProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetGrpcProxy = "targetGrpcProxy1045500511";
@@ -1279,8 +1498,11 @@
  * <p>Sample for TargetHttpProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetHttpProxiesClient targetHttpProxiesClient = TargetHttpProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetHttpProxy = "targetHttpProxy-1944074187";
@@ -1295,8 +1517,11 @@
  * <p>Sample for TargetHttpsProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetHttpsProxiesClient targetHttpsProxiesClient = TargetHttpsProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetHttpsProxy = "targetHttpsProxy833943732";
@@ -1311,8 +1536,11 @@
  * <p>Sample for TargetInstancesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetInstancesClient targetInstancesClient = TargetInstancesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -1328,8 +1556,11 @@
  * <p>Sample for TargetPoolsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetPoolsClient targetPoolsClient = TargetPoolsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1345,8 +1576,11 @@
  * <p>Sample for TargetSslProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetSslProxiesClient targetSslProxiesClient = TargetSslProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetSslProxy = "targetSslProxy-879314829";
@@ -1361,8 +1595,11 @@
  * <p>Sample for TargetTcpProxiesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetTcpProxiesClient targetTcpProxiesClient = TargetTcpProxiesClient.create()) {
  *   String project = "project-309310695";
  *   String targetTcpProxy = "targetTcpProxy-337144898";
@@ -1377,8 +1614,11 @@
  * <p>Sample for TargetVpnGatewaysClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (TargetVpnGatewaysClient targetVpnGatewaysClient = TargetVpnGatewaysClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1394,8 +1634,11 @@
  * <p>Sample for UrlMapsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (UrlMapsClient urlMapsClient = UrlMapsClient.create()) {
  *   String project = "project-309310695";
  *   String urlMap = "urlMap-836780691";
@@ -1410,8 +1653,11 @@
  * <p>Sample for VpnGatewaysClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (VpnGatewaysClient vpnGatewaysClient = VpnGatewaysClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1427,8 +1673,11 @@
  * <p>Sample for VpnTunnelsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (VpnTunnelsClient vpnTunnelsClient = VpnTunnelsClient.create()) {
  *   String project = "project-309310695";
  *   String region = "region-934795532";
@@ -1444,8 +1693,11 @@
  * <p>Sample for ZoneOperationsClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
@@ -1461,8 +1713,11 @@
  * <p>Sample for ZonesClient:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ZonesClient zonesClient = ZonesClient.create()) {
  *   String project = "project-309310695";
  *   String zone = "zone3744684";
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AcceleratorTypesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AcceleratorTypesStubSettings.java
index 27a612874..c39836cec 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AcceleratorTypesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AcceleratorTypesStubSettings.java
@@ -77,17 +77,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AcceleratorTypesStubSettings.Builder acceleratorTypesSettingsBuilder =
  *     AcceleratorTypesStubSettings.newBuilder();
  * acceleratorTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         acceleratorTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         acceleratorTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AcceleratorTypesStubSettings acceleratorTypesSettings = acceleratorTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AddressesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AddressesStubSettings.java
index d23b29a0c..80ab046c2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AddressesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AddressesStubSettings.java
@@ -84,16 +84,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AddressesStubSettings.Builder addressesSettingsBuilder = AddressesStubSettings.newBuilder();
  * addressesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         addressesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         addressesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AddressesStubSettings addressesSettings = addressesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AutoscalersStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AutoscalersStubSettings.java
index 18e061669..29e57e847 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AutoscalersStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/AutoscalersStubSettings.java
@@ -86,17 +86,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * AutoscalersStubSettings.Builder autoscalersSettingsBuilder =
  *     AutoscalersStubSettings.newBuilder();
  * autoscalersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         autoscalersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         autoscalersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AutoscalersStubSettings autoscalersSettings = autoscalersSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendBucketsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendBucketsStubSettings.java
index e15bab087..d51ffafc7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendBucketsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendBucketsStubSettings.java
@@ -83,17 +83,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendBucketsStubSettings.Builder backendBucketsSettingsBuilder =
  *     BackendBucketsStubSettings.newBuilder();
  * backendBucketsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         backendBucketsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         backendBucketsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * BackendBucketsStubSettings backendBucketsSettings = backendBucketsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendServicesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendServicesStubSettings.java
index a7c5e5314..55659dc22 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendServicesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/BackendServicesStubSettings.java
@@ -92,17 +92,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * BackendServicesStubSettings.Builder backendServicesSettingsBuilder =
  *     BackendServicesStubSettings.newBuilder();
  * backendServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         backendServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         backendServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * BackendServicesStubSettings backendServicesSettings = backendServicesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DiskTypesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DiskTypesStubSettings.java
index b4b42233c..e647f9a25 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DiskTypesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DiskTypesStubSettings.java
@@ -77,16 +77,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DiskTypesStubSettings.Builder diskTypesSettingsBuilder = DiskTypesStubSettings.newBuilder();
  * diskTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         diskTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         diskTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * DiskTypesStubSettings diskTypesSettings = diskTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DisksStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DisksStubSettings.java
index dc89a7376..094969e03 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DisksStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/DisksStubSettings.java
@@ -94,16 +94,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * DisksStubSettings.Builder disksSettingsBuilder = DisksStubSettings.newBuilder();
  * disksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         disksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         disksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * DisksStubSettings disksSettings = disksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ExternalVpnGatewaysStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ExternalVpnGatewaysStubSettings.java
index 48f01baea..0ca0e97d7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ExternalVpnGatewaysStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ExternalVpnGatewaysStubSettings.java
@@ -81,17 +81,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ExternalVpnGatewaysStubSettings.Builder externalVpnGatewaysSettingsBuilder =
  *     ExternalVpnGatewaysStubSettings.newBuilder();
  * externalVpnGatewaysSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         externalVpnGatewaysSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         externalVpnGatewaysSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ExternalVpnGatewaysStubSettings externalVpnGatewaysSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallPoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallPoliciesStubSettings.java
index a6c76f2d8..f30980b54 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallPoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallPoliciesStubSettings.java
@@ -97,17 +97,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallPoliciesStubSettings.Builder firewallPoliciesSettingsBuilder =
  *     FirewallPoliciesStubSettings.newBuilder();
  * firewallPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         firewallPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         firewallPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * FirewallPoliciesStubSettings firewallPoliciesSettings = firewallPoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallsStubSettings.java
index ca142761a..4e172731d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/FirewallsStubSettings.java
@@ -80,16 +80,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * FirewallsStubSettings.Builder firewallsSettingsBuilder = FirewallsStubSettings.newBuilder();
  * firewallsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         firewallsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         firewallsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * FirewallsStubSettings firewallsSettings = firewallsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ForwardingRulesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ForwardingRulesStubSettings.java
index b42b2db46..8b3ad7c61 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ForwardingRulesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ForwardingRulesStubSettings.java
@@ -87,17 +87,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ForwardingRulesStubSettings.Builder forwardingRulesSettingsBuilder =
  *     ForwardingRulesStubSettings.newBuilder();
  * forwardingRulesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         forwardingRulesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         forwardingRulesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ForwardingRulesStubSettings forwardingRulesSettings = forwardingRulesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalAddressesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalAddressesStubSettings.java
index de8aff08c..0d7b431b9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalAddressesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalAddressesStubSettings.java
@@ -78,17 +78,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalAddressesStubSettings.Builder globalAddressesSettingsBuilder =
  *     GlobalAddressesStubSettings.newBuilder();
  * globalAddressesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         globalAddressesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalAddressesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalAddressesStubSettings globalAddressesSettings = globalAddressesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalForwardingRulesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalForwardingRulesStubSettings.java
index e6e26d907..800fe9c61 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalForwardingRulesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalForwardingRulesStubSettings.java
@@ -81,17 +81,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalForwardingRulesStubSettings.Builder globalForwardingRulesSettingsBuilder =
  *     GlobalForwardingRulesStubSettings.newBuilder();
  * globalForwardingRulesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         globalForwardingRulesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalForwardingRulesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalForwardingRulesStubSettings globalForwardingRulesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalNetworkEndpointGroupsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalNetworkEndpointGroupsStubSettings.java
index 04c9a5c57..8212a113e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalNetworkEndpointGroupsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalNetworkEndpointGroupsStubSettings.java
@@ -84,17 +84,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalNetworkEndpointGroupsStubSettings.Builder globalNetworkEndpointGroupsSettingsBuilder =
  *     GlobalNetworkEndpointGroupsStubSettings.newBuilder();
  * globalNetworkEndpointGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         globalNetworkEndpointGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalNetworkEndpointGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalNetworkEndpointGroupsStubSettings globalNetworkEndpointGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOperationsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOperationsStubSettings.java
index 130f45956..cc572afbc 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOperationsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOperationsStubSettings.java
@@ -80,17 +80,17 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOperationsStubSettings.Builder globalOperationsSettingsBuilder =
  *     GlobalOperationsStubSettings.newBuilder();
  * globalOperationsSettingsBuilder
  *     .deleteSettings()
  *     .setRetrySettings(
- *         globalOperationsSettingsBuilder
- *             .deleteSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         globalOperationsSettingsBuilder.deleteSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * GlobalOperationsStubSettings globalOperationsSettings = globalOperationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOrganizationOperationsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOrganizationOperationsStubSettings.java
index 15c4b4b01..7cc445aa7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOrganizationOperationsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalOrganizationOperationsStubSettings.java
@@ -73,8 +73,11 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalOrganizationOperationsStubSettings.Builder globalOrganizationOperationsSettingsBuilder =
  *     GlobalOrganizationOperationsStubSettings.newBuilder();
  * globalOrganizationOperationsSettingsBuilder
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalPublicDelegatedPrefixesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalPublicDelegatedPrefixesStubSettings.java
index dfc8c6478..110bb107b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalPublicDelegatedPrefixesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/GlobalPublicDelegatedPrefixesStubSettings.java
@@ -79,8 +79,11 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * GlobalPublicDelegatedPrefixesStubSettings.Builder globalPublicDelegatedPrefixesSettingsBuilder =
  *     GlobalPublicDelegatedPrefixesStubSettings.newBuilder();
  * globalPublicDelegatedPrefixesSettingsBuilder
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HealthChecksStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HealthChecksStubSettings.java
index acf3acf19..1ae74d484 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HealthChecksStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HealthChecksStubSettings.java
@@ -86,17 +86,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * HealthChecksStubSettings.Builder healthChecksSettingsBuilder =
  *     HealthChecksStubSettings.newBuilder();
  * healthChecksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         healthChecksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         healthChecksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * HealthChecksStubSettings healthChecksSettings = healthChecksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAddressesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAddressesStub.java
index 82b72af20..a5d2ce009 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAddressesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAddressesStub.java
@@ -234,7 +234,7 @@ public class HttpJsonAddressesStub extends AddressesStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("addressResource", request.getAddressResource()))
+                              .toBody("addressResource", request.getAddressResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAutoscalersStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAutoscalersStub.java
index 11b948ed5..8d63eb36e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAutoscalersStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonAutoscalersStub.java
@@ -240,7 +240,8 @@ public class HttpJsonAutoscalersStub extends AutoscalersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("autoscalerResource", request.getAutoscalerResource()))
+                                  .toBody(
+                                      "autoscalerResource", request.getAutoscalerResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -350,7 +351,8 @@ public class HttpJsonAutoscalersStub extends AutoscalersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("autoscalerResource", request.getAutoscalerResource()))
+                                  .toBody(
+                                      "autoscalerResource", request.getAutoscalerResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -407,7 +409,8 @@ public class HttpJsonAutoscalersStub extends AutoscalersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("autoscalerResource", request.getAutoscalerResource()))
+                                  .toBody(
+                                      "autoscalerResource", request.getAutoscalerResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendBucketsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendBucketsStub.java
index 942f1a9df..990e69f5f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendBucketsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendBucketsStub.java
@@ -99,7 +99,9 @@ public class HttpJsonBackendBucketsStub extends BackendBucketsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "signedUrlKeyResource", request.getSignedUrlKeyResource()))
+                                      "signedUrlKeyResource",
+                                      request.getSignedUrlKeyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -287,7 +289,9 @@ public class HttpJsonBackendBucketsStub extends BackendBucketsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "backendBucketResource", request.getBackendBucketResource()))
+                                      "backendBucketResource",
+                                      request.getBackendBucketResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -393,7 +397,9 @@ public class HttpJsonBackendBucketsStub extends BackendBucketsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "backendBucketResource", request.getBackendBucketResource()))
+                                      "backendBucketResource",
+                                      request.getBackendBucketResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -449,7 +455,8 @@ public class HttpJsonBackendBucketsStub extends BackendBucketsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyReferenceResource",
-                                      request.getSecurityPolicyReferenceResource()))
+                                      request.getSecurityPolicyReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -503,7 +510,9 @@ public class HttpJsonBackendBucketsStub extends BackendBucketsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "backendBucketResource", request.getBackendBucketResource()))
+                                      "backendBucketResource",
+                                      request.getBackendBucketResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendServicesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendServicesStub.java
index 325258163..8e4c5a196 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendServicesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonBackendServicesStub.java
@@ -105,7 +105,9 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "signedUrlKeyResource", request.getSignedUrlKeyResource()))
+                                      "signedUrlKeyResource",
+                                      request.getSignedUrlKeyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -353,7 +355,8 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "resourceGroupReferenceResource",
-                                      request.getResourceGroupReferenceResource()))
+                                      request.getResourceGroupReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<BackendServiceGroupHealth>newBuilder()
@@ -394,7 +397,8 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "backendServiceResource",
-                                      request.getBackendServiceResource()))
+                                      request.getBackendServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -501,7 +505,8 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "backendServiceResource",
-                                      request.getBackendServiceResource()))
+                                      request.getBackendServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -557,7 +562,8 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyReferenceResource",
-                                      request.getSecurityPolicyReferenceResource()))
+                                      request.getSecurityPolicyReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -612,7 +618,8 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyReferenceResource",
-                                      request.getSecurityPolicyReferenceResource()))
+                                      request.getSecurityPolicyReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -667,7 +674,8 @@ public class HttpJsonBackendServicesStub extends BackendServicesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "backendServiceResource",
-                                      request.getBackendServiceResource()))
+                                      request.getBackendServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonDisksStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonDisksStub.java
index ed93808a1..73be0ba71 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonDisksStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonDisksStub.java
@@ -108,7 +108,8 @@ public class HttpJsonDisksStub extends DisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "disksAddResourcePoliciesRequestResource",
-                                      request.getDisksAddResourcePoliciesRequestResource()))
+                                      request.getDisksAddResourcePoliciesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -222,7 +223,7 @@ public class HttpJsonDisksStub extends DisksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("snapshotResource", request.getSnapshotResource()))
+                                  .toBody("snapshotResource", request.getSnapshotResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -402,7 +403,7 @@ public class HttpJsonDisksStub extends DisksStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("diskResource", request.getDiskResource()))
+                              .toBody("diskResource", request.getDiskResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -507,7 +508,8 @@ public class HttpJsonDisksStub extends DisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "disksRemoveResourcePoliciesRequestResource",
-                                      request.getDisksRemoveResourcePoliciesRequestResource()))
+                                      request.getDisksRemoveResourcePoliciesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -562,7 +564,8 @@ public class HttpJsonDisksStub extends DisksStub {
                           ProtoRestSerializer.create()
                               .toBody(
                                   "disksResizeRequestResource",
-                                  request.getDisksResizeRequestResource()))
+                                  request.getDisksResizeRequestResource(),
+                                  false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -615,7 +618,8 @@ public class HttpJsonDisksStub extends DisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "zoneSetPolicyRequestResource",
-                                      request.getZoneSetPolicyRequestResource()))
+                                      request.getZoneSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -658,7 +662,8 @@ public class HttpJsonDisksStub extends DisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "zoneSetLabelsRequestResource",
-                                      request.getZoneSetLabelsRequestResource()))
+                                      request.getZoneSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -711,7 +716,8 @@ public class HttpJsonDisksStub extends DisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonExternalVpnGatewaysStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonExternalVpnGatewaysStub.java
index 77febeaac..7d799c647 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonExternalVpnGatewaysStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonExternalVpnGatewaysStub.java
@@ -181,7 +181,8 @@ public class HttpJsonExternalVpnGatewaysStub extends ExternalVpnGatewaysStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "externalVpnGatewayResource",
-                                      request.getExternalVpnGatewayResource()))
+                                      request.getExternalVpnGatewayResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -284,7 +285,8 @@ public class HttpJsonExternalVpnGatewaysStub extends ExternalVpnGatewaysStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetLabelsRequestResource",
-                                      request.getGlobalSetLabelsRequestResource()))
+                                      request.getGlobalSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -338,7 +340,8 @@ public class HttpJsonExternalVpnGatewaysStub extends ExternalVpnGatewaysStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallPoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallPoliciesStub.java
index a783ce199..a67899668 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallPoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallPoliciesStub.java
@@ -119,7 +119,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyAssociationResource",
-                                      request.getFirewallPolicyAssociationResource()))
+                                      request.getFirewallPolicyAssociationResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -172,7 +173,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyRuleResource",
-                                      request.getFirewallPolicyRuleResource()))
+                                      request.getFirewallPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -475,7 +477,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyResource",
-                                      request.getFirewallPolicyResource()))
+                                      request.getFirewallPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -673,7 +676,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyResource",
-                                      request.getFirewallPolicyResource()))
+                                      request.getFirewallPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -729,7 +733,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyRuleResource",
-                                      request.getFirewallPolicyRuleResource()))
+                                      request.getFirewallPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -880,7 +885,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalOrganizationSetPolicyRequestResource",
-                                      request.getGlobalOrganizationSetPolicyRequestResource()))
+                                      request.getGlobalOrganizationSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -920,7 +926,8 @@ public class HttpJsonFirewallPoliciesStub extends FirewallPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallsStub.java
index 33fff9e27..0991f3d5d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonFirewallsStub.java
@@ -175,7 +175,7 @@ public class HttpJsonFirewallsStub extends FirewallsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("firewallResource", request.getFirewallResource()))
+                                  .toBody("firewallResource", request.getFirewallResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -278,7 +278,7 @@ public class HttpJsonFirewallsStub extends FirewallsStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("firewallResource", request.getFirewallResource()))
+                              .toBody("firewallResource", request.getFirewallResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -330,7 +330,7 @@ public class HttpJsonFirewallsStub extends FirewallsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("firewallResource", request.getFirewallResource()))
+                                  .toBody("firewallResource", request.getFirewallResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonForwardingRulesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonForwardingRulesStub.java
index 45b897dc8..b66a40d8f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonForwardingRulesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonForwardingRulesStub.java
@@ -246,7 +246,8 @@ public class HttpJsonForwardingRulesStub extends ForwardingRulesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "forwardingRuleResource",
-                                      request.getForwardingRuleResource()))
+                                      request.getForwardingRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -356,7 +357,8 @@ public class HttpJsonForwardingRulesStub extends ForwardingRulesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "forwardingRuleResource",
-                                      request.getForwardingRuleResource()))
+                                      request.getForwardingRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -412,7 +414,8 @@ public class HttpJsonForwardingRulesStub extends ForwardingRulesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetLabelsRequestResource",
-                                      request.getRegionSetLabelsRequestResource()))
+                                      request.getRegionSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -469,7 +472,8 @@ public class HttpJsonForwardingRulesStub extends ForwardingRulesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetReferenceResource",
-                                      request.getTargetReferenceResource()))
+                                      request.getTargetReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalAddressesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalAddressesStub.java
index 10fb970a6..2c0449dc2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalAddressesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalAddressesStub.java
@@ -173,7 +173,7 @@ public class HttpJsonGlobalAddressesStub extends GlobalAddressesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("addressResource", request.getAddressResource()))
+                                  .toBody("addressResource", request.getAddressResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalForwardingRulesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalForwardingRulesStub.java
index fc3800b3b..5f7f1cf8c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalForwardingRulesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalForwardingRulesStub.java
@@ -181,7 +181,8 @@ public class HttpJsonGlobalForwardingRulesStub extends GlobalForwardingRulesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "forwardingRuleResource",
-                                      request.getForwardingRuleResource()))
+                                      request.getForwardingRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -288,7 +289,8 @@ public class HttpJsonGlobalForwardingRulesStub extends GlobalForwardingRulesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "forwardingRuleResource",
-                                      request.getForwardingRuleResource()))
+                                      request.getForwardingRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -339,7 +341,8 @@ public class HttpJsonGlobalForwardingRulesStub extends GlobalForwardingRulesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetLabelsRequestResource",
-                                      request.getGlobalSetLabelsRequestResource()))
+                                      request.getGlobalSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -394,7 +397,8 @@ public class HttpJsonGlobalForwardingRulesStub extends GlobalForwardingRulesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetReferenceResource",
-                                      request.getTargetReferenceResource()))
+                                      request.getTargetReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalNetworkEndpointGroupsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalNetworkEndpointGroupsStub.java
index 5a49ec77a..3c18e5452 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalNetworkEndpointGroupsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalNetworkEndpointGroupsStub.java
@@ -107,7 +107,8 @@ public class HttpJsonGlobalNetworkEndpointGroupsStub extends GlobalNetworkEndpoi
                                   .toBody(
                                       "globalNetworkEndpointGroupsAttachEndpointsRequestResource",
                                       request
-                                          .getGlobalNetworkEndpointGroupsAttachEndpointsRequestResource()))
+                                          .getGlobalNetworkEndpointGroupsAttachEndpointsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -220,7 +221,8 @@ public class HttpJsonGlobalNetworkEndpointGroupsStub extends GlobalNetworkEndpoi
                                   .toBody(
                                       "globalNetworkEndpointGroupsDetachEndpointsRequestResource",
                                       request
-                                          .getGlobalNetworkEndpointGroupsDetachEndpointsRequestResource()))
+                                          .getGlobalNetworkEndpointGroupsDetachEndpointsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -311,7 +313,8 @@ public class HttpJsonGlobalNetworkEndpointGroupsStub extends GlobalNetworkEndpoi
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networkEndpointGroupResource",
-                                      request.getNetworkEndpointGroupResource()))
+                                      request.getNetworkEndpointGroupResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalPublicDelegatedPrefixesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalPublicDelegatedPrefixesStub.java
index 829f4b0f9..d632b1af5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalPublicDelegatedPrefixesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonGlobalPublicDelegatedPrefixesStub.java
@@ -187,7 +187,8 @@ public class HttpJsonGlobalPublicDelegatedPrefixesStub extends GlobalPublicDeleg
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "publicDelegatedPrefixResource",
-                                      request.getPublicDelegatedPrefixResource()))
+                                      request.getPublicDelegatedPrefixResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -300,7 +301,8 @@ public class HttpJsonGlobalPublicDelegatedPrefixesStub extends GlobalPublicDeleg
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "publicDelegatedPrefixResource",
-                                      request.getPublicDelegatedPrefixResource()))
+                                      request.getPublicDelegatedPrefixResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonHealthChecksStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonHealthChecksStub.java
index ec8fa574c..2a3c69311 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonHealthChecksStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonHealthChecksStub.java
@@ -237,7 +237,10 @@ public class HttpJsonHealthChecksStub extends HealthChecksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("healthCheckResource", request.getHealthCheckResource()))
+                                  .toBody(
+                                      "healthCheckResource",
+                                      request.getHealthCheckResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -342,7 +345,10 @@ public class HttpJsonHealthChecksStub extends HealthChecksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("healthCheckResource", request.getHealthCheckResource()))
+                                  .toBody(
+                                      "healthCheckResource",
+                                      request.getHealthCheckResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -395,7 +401,10 @@ public class HttpJsonHealthChecksStub extends HealthChecksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("healthCheckResource", request.getHealthCheckResource()))
+                                  .toBody(
+                                      "healthCheckResource",
+                                      request.getHealthCheckResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonImagesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonImagesStub.java
index 9f824bb34..6e88cf3e5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonImagesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonImagesStub.java
@@ -151,7 +151,8 @@ public class HttpJsonImagesStub extends ImagesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "deprecationStatusResource",
-                                      request.getDeprecationStatusResource()))
+                                      request.getDeprecationStatusResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -311,7 +312,7 @@ public class HttpJsonImagesStub extends ImagesStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("imageResource", request.getImageResource()))
+                              .toBody("imageResource", request.getImageResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -410,7 +411,7 @@ public class HttpJsonImagesStub extends ImagesStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("imageResource", request.getImageResource()))
+                              .toBody("imageResource", request.getImageResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -461,7 +462,8 @@ public class HttpJsonImagesStub extends ImagesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetPolicyRequestResource",
-                                      request.getGlobalSetPolicyRequestResource()))
+                                      request.getGlobalSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -500,7 +502,8 @@ public class HttpJsonImagesStub extends ImagesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetLabelsRequestResource",
-                                      request.getGlobalSetLabelsRequestResource()))
+                                      request.getGlobalSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -551,7 +554,8 @@ public class HttpJsonImagesStub extends ImagesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupManagersStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupManagersStub.java
index e01c24cac..8a32c206d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupManagersStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupManagersStub.java
@@ -122,7 +122,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersAbandonInstancesRequestResource",
                                       request
-                                          .getInstanceGroupManagersAbandonInstancesRequestResource()))
+                                          .getInstanceGroupManagersAbandonInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -240,8 +241,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupManagersApplyUpdatesRequestResource",
-                                      request
-                                          .getInstanceGroupManagersApplyUpdatesRequestResource()))
+                                      request.getInstanceGroupManagersApplyUpdatesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -301,7 +302,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersCreateInstancesRequestResource",
                                       request
-                                          .getInstanceGroupManagersCreateInstancesRequestResource()))
+                                          .getInstanceGroupManagersCreateInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -412,7 +414,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersDeleteInstancesRequestResource",
                                       request
-                                          .getInstanceGroupManagersDeleteInstancesRequestResource()))
+                                          .getInstanceGroupManagersDeleteInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -471,7 +474,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersDeletePerInstanceConfigsReqResource",
                                       request
-                                          .getInstanceGroupManagersDeletePerInstanceConfigsReqResource()))
+                                          .getInstanceGroupManagersDeletePerInstanceConfigsReqResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -563,7 +567,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupManagerResource",
-                                      request.getInstanceGroupManagerResource()))
+                                      request.getInstanceGroupManagerResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -862,7 +867,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupManagerResource",
-                                      request.getInstanceGroupManagerResource()))
+                                      request.getInstanceGroupManagerResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -924,7 +930,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersPatchPerInstanceConfigsReqResource",
                                       request
-                                          .getInstanceGroupManagersPatchPerInstanceConfigsReqResource()))
+                                          .getInstanceGroupManagersPatchPerInstanceConfigsReqResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -984,7 +991,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersRecreateInstancesRequestResource",
                                       request
-                                          .getInstanceGroupManagersRecreateInstancesRequestResource()))
+                                          .getInstanceGroupManagersRecreateInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1099,7 +1107,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersSetInstanceTemplateRequestResource",
                                       request
-                                          .getInstanceGroupManagersSetInstanceTemplateRequestResource()))
+                                          .getInstanceGroupManagersSetInstanceTemplateRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1158,7 +1167,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersSetTargetPoolsRequestResource",
                                       request
-                                          .getInstanceGroupManagersSetTargetPoolsRequestResource()))
+                                          .getInstanceGroupManagersSetTargetPoolsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1220,7 +1230,8 @@ public class HttpJsonInstanceGroupManagersStub extends InstanceGroupManagersStub
                                   .toBody(
                                       "instanceGroupManagersUpdatePerInstanceConfigsReqResource",
                                       request
-                                          .getInstanceGroupManagersUpdatePerInstanceConfigsReqResource()))
+                                          .getInstanceGroupManagersUpdatePerInstanceConfigsReqResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupsStub.java
index 070c077c3..492417898 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceGroupsStub.java
@@ -105,7 +105,8 @@ public class HttpJsonInstanceGroupsStub extends InstanceGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupsAddInstancesRequestResource",
-                                      request.getInstanceGroupsAddInstancesRequestResource()))
+                                      request.getInstanceGroupsAddInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -305,7 +306,9 @@ public class HttpJsonInstanceGroupsStub extends InstanceGroupsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "instanceGroupResource", request.getInstanceGroupResource()))
+                                      "instanceGroupResource",
+                                      request.getInstanceGroupResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -433,7 +436,8 @@ public class HttpJsonInstanceGroupsStub extends InstanceGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupsListInstancesRequestResource",
-                                      request.getInstanceGroupsListInstancesRequestResource()))
+                                      request.getInstanceGroupsListInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<InstanceGroupsListInstances>newBuilder()
@@ -477,7 +481,8 @@ public class HttpJsonInstanceGroupsStub extends InstanceGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupsRemoveInstancesRequestResource",
-                                      request.getInstanceGroupsRemoveInstancesRequestResource()))
+                                      request.getInstanceGroupsRemoveInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -534,7 +539,8 @@ public class HttpJsonInstanceGroupsStub extends InstanceGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupsSetNamedPortsRequestResource",
-                                      request.getInstanceGroupsSetNamedPortsRequestResource()))
+                                      request.getInstanceGroupsSetNamedPortsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceTemplatesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceTemplatesStub.java
index 5e201a33e..ff2735218 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceTemplatesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstanceTemplatesStub.java
@@ -223,7 +223,8 @@ public class HttpJsonInstanceTemplatesStub extends InstanceTemplatesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceTemplateResource",
-                                      request.getInstanceTemplateResource()))
+                                      request.getInstanceTemplateResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -326,7 +327,8 @@ public class HttpJsonInstanceTemplatesStub extends InstanceTemplatesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetPolicyRequestResource",
-                                      request.getGlobalSetPolicyRequestResource()))
+                                      request.getGlobalSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -368,7 +370,8 @@ public class HttpJsonInstanceTemplatesStub extends InstanceTemplatesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstancesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstancesStub.java
index f724e5429..d53ffa7f1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstancesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInstancesStub.java
@@ -149,7 +149,9 @@ public class HttpJsonInstancesStub extends InstancesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "accessConfigResource", request.getAccessConfigResource()))
+                                      "accessConfigResource",
+                                      request.getAccessConfigResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -205,7 +207,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesAddResourcePoliciesRequestResource",
-                                      request.getInstancesAddResourcePoliciesRequestResource()))
+                                      request.getInstancesAddResourcePoliciesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -320,7 +323,9 @@ public class HttpJsonInstancesStub extends InstancesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "attachedDiskResource", request.getAttachedDiskResource()))
+                                      "attachedDiskResource",
+                                      request.getAttachedDiskResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -375,7 +380,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "bulkInsertInstanceResourceResource",
-                                      request.getBulkInsertInstanceResourceResource()))
+                                      request.getBulkInsertInstanceResourceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -868,7 +874,7 @@ public class HttpJsonInstancesStub extends InstancesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("instanceResource", request.getInstanceResource()))
+                                  .toBody("instanceResource", request.getInstanceResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1031,7 +1037,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesRemoveResourcePoliciesRequestResource",
-                                      request.getInstancesRemoveResourcePoliciesRequestResource()))
+                                      request.getInstancesRemoveResourcePoliciesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1332,7 +1339,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "zoneSetPolicyRequestResource",
-                                      request.getZoneSetPolicyRequestResource()))
+                                      request.getZoneSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -1375,7 +1383,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesSetLabelsRequestResource",
-                                      request.getInstancesSetLabelsRequestResource()))
+                                      request.getInstancesSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1431,7 +1440,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesSetMachineResourcesRequestResource",
-                                      request.getInstancesSetMachineResourcesRequestResource()))
+                                      request.getInstancesSetMachineResourcesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1487,7 +1497,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesSetMachineTypeRequestResource",
-                                      request.getInstancesSetMachineTypeRequestResource()))
+                                      request.getInstancesSetMachineTypeRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1541,7 +1552,7 @@ public class HttpJsonInstancesStub extends InstancesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("metadataResource", request.getMetadataResource()))
+                                  .toBody("metadataResource", request.getMetadataResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1597,7 +1608,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesSetMinCpuPlatformRequestResource",
-                                      request.getInstancesSetMinCpuPlatformRequestResource()))
+                                      request.getInstancesSetMinCpuPlatformRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1651,7 +1663,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("schedulingResource", request.getSchedulingResource()))
+                                  .toBody(
+                                      "schedulingResource", request.getSchedulingResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1707,7 +1720,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesSetServiceAccountRequestResource",
-                                      request.getInstancesSetServiceAccountRequestResource()))
+                                      request.getInstancesSetServiceAccountRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1767,7 +1781,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "shieldedInstanceIntegrityPolicyResource",
-                                      request.getShieldedInstanceIntegrityPolicyResource()))
+                                      request.getShieldedInstanceIntegrityPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1822,7 +1837,7 @@ public class HttpJsonInstancesStub extends InstancesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("tagsResource", request.getTagsResource()))
+                                  .toBody("tagsResource", request.getTagsResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1976,7 +1991,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instancesStartWithEncryptionKeyRequestResource",
-                                      request.getInstancesStartWithEncryptionKeyRequestResource()))
+                                      request.getInstancesStartWithEncryptionKeyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -2132,7 +2148,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
@@ -2183,7 +2200,7 @@ public class HttpJsonInstancesStub extends InstancesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("instanceResource", request.getInstanceResource()))
+                                  .toBody("instanceResource", request.getInstanceResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -2240,7 +2257,9 @@ public class HttpJsonInstancesStub extends InstancesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "accessConfigResource", request.getAccessConfigResource()))
+                                      "accessConfigResource",
+                                      request.getAccessConfigResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -2295,7 +2314,9 @@ public class HttpJsonInstancesStub extends InstancesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "displayDeviceResource", request.getDisplayDeviceResource()))
+                                      "displayDeviceResource",
+                                      request.getDisplayDeviceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -2353,7 +2374,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networkInterfaceResource",
-                                      request.getNetworkInterfaceResource()))
+                                      request.getNetworkInterfaceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -2410,7 +2432,8 @@ public class HttpJsonInstancesStub extends InstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "shieldedInstanceConfigResource",
-                                      request.getShieldedInstanceConfigResource()))
+                                      request.getShieldedInstanceConfigResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectAttachmentsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectAttachmentsStub.java
index 809f620f8..f02669c82 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectAttachmentsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectAttachmentsStub.java
@@ -254,7 +254,8 @@ public class HttpJsonInterconnectAttachmentsStub extends InterconnectAttachments
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "interconnectAttachmentResource",
-                                      request.getInterconnectAttachmentResource()))
+                                      request.getInterconnectAttachmentResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -368,7 +369,8 @@ public class HttpJsonInterconnectAttachmentsStub extends InterconnectAttachments
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "interconnectAttachmentResource",
-                                      request.getInterconnectAttachmentResource()))
+                                      request.getInterconnectAttachmentResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectsStub.java
index 1d35260ca..fe802cda4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonInterconnectsStub.java
@@ -217,7 +217,9 @@ public class HttpJsonInterconnectsStub extends InterconnectsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "interconnectResource", request.getInterconnectResource()))
+                                      "interconnectResource",
+                                      request.getInterconnectResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -323,7 +325,9 @@ public class HttpJsonInterconnectsStub extends InterconnectsStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "interconnectResource", request.getInterconnectResource()))
+                                      "interconnectResource",
+                                      request.getInterconnectResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicenseCodesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicenseCodesStub.java
index 03e8556e7..488a3c10d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicenseCodesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicenseCodesStub.java
@@ -117,7 +117,8 @@ public class HttpJsonLicenseCodesStub extends LicenseCodesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicensesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicensesStub.java
index 8cb257b1a..c40f17792 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicensesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonLicensesStub.java
@@ -216,7 +216,7 @@ public class HttpJsonLicensesStub extends LicensesStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("licenseResource", request.getLicenseResource()))
+                              .toBody("licenseResource", request.getLicenseResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -319,7 +319,8 @@ public class HttpJsonLicensesStub extends LicensesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetPolicyRequestResource",
-                                      request.getGlobalSetPolicyRequestResource()))
+                                      request.getGlobalSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -360,7 +361,8 @@ public class HttpJsonLicensesStub extends LicensesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonMachineImagesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonMachineImagesStub.java
index dfaa03f3c..f23ea6d8e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonMachineImagesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonMachineImagesStub.java
@@ -226,7 +226,9 @@ public class HttpJsonMachineImagesStub extends MachineImagesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "machineImageResource", request.getMachineImageResource()))
+                                      "machineImageResource",
+                                      request.getMachineImageResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -329,7 +331,8 @@ public class HttpJsonMachineImagesStub extends MachineImagesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetPolicyRequestResource",
-                                      request.getGlobalSetPolicyRequestResource()))
+                                      request.getGlobalSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -370,7 +373,8 @@ public class HttpJsonMachineImagesStub extends MachineImagesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEdgeSecurityServicesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEdgeSecurityServicesStub.java
index 619baf3a0..d775bc0ce 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEdgeSecurityServicesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEdgeSecurityServicesStub.java
@@ -257,7 +257,8 @@ public class HttpJsonNetworkEdgeSecurityServicesStub extends NetworkEdgeSecurity
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networkEdgeSecurityServiceResource",
-                                      request.getNetworkEdgeSecurityServiceResource()))
+                                      request.getNetworkEdgeSecurityServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -323,7 +324,8 @@ public class HttpJsonNetworkEdgeSecurityServicesStub extends NetworkEdgeSecurity
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networkEdgeSecurityServiceResource",
-                                      request.getNetworkEdgeSecurityServiceResource()))
+                                      request.getNetworkEdgeSecurityServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEndpointGroupsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEndpointGroupsStub.java
index b256044ac..644355d71 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEndpointGroupsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkEndpointGroupsStub.java
@@ -171,7 +171,8 @@ public class HttpJsonNetworkEndpointGroupsStub extends NetworkEndpointGroupsStub
                                   .toBody(
                                       "networkEndpointGroupsAttachEndpointsRequestResource",
                                       request
-                                          .getNetworkEndpointGroupsAttachEndpointsRequestResource()))
+                                          .getNetworkEndpointGroupsAttachEndpointsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -286,7 +287,8 @@ public class HttpJsonNetworkEndpointGroupsStub extends NetworkEndpointGroupsStub
                                   .toBody(
                                       "networkEndpointGroupsDetachEndpointsRequestResource",
                                       request
-                                          .getNetworkEndpointGroupsDetachEndpointsRequestResource()))
+                                          .getNetworkEndpointGroupsDetachEndpointsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -378,7 +380,8 @@ public class HttpJsonNetworkEndpointGroupsStub extends NetworkEndpointGroupsStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networkEndpointGroupResource",
-                                      request.getNetworkEndpointGroupResource()))
+                                      request.getNetworkEndpointGroupResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -514,7 +517,8 @@ public class HttpJsonNetworkEndpointGroupsStub extends NetworkEndpointGroupsStub
                                   .toBody(
                                       "networkEndpointGroupsListEndpointsRequestResource",
                                       request
-                                          .getNetworkEndpointGroupsListEndpointsRequestResource()))
+                                          .getNetworkEndpointGroupsListEndpointsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<NetworkEndpointGroupsListNetworkEndpoints>newBuilder()
@@ -558,7 +562,8 @@ public class HttpJsonNetworkEndpointGroupsStub extends NetworkEndpointGroupsStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkFirewallPoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkFirewallPoliciesStub.java
index 0748c81ce..1ca07fb69 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkFirewallPoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworkFirewallPoliciesStub.java
@@ -118,7 +118,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyAssociationResource",
-                                      request.getFirewallPolicyAssociationResource()))
+                                      request.getFirewallPolicyAssociationResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -181,7 +182,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyRuleResource",
-                                      request.getFirewallPolicyRuleResource()))
+                                      request.getFirewallPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -495,7 +497,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyResource",
-                                      request.getFirewallPolicyResource()))
+                                      request.getFirewallPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -602,7 +605,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyResource",
-                                      request.getFirewallPolicyResource()))
+                                      request.getFirewallPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -660,7 +664,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyRuleResource",
-                                      request.getFirewallPolicyRuleResource()))
+                                      request.getFirewallPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -820,7 +825,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetPolicyRequestResource",
-                                      request.getGlobalSetPolicyRequestResource()))
+                                      request.getGlobalSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -863,7 +869,8 @@ public class HttpJsonNetworkFirewallPoliciesStub extends NetworkFirewallPolicies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworksStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworksStub.java
index a2efd5f04..94c59ca43 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworksStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNetworksStub.java
@@ -104,7 +104,8 @@ public class HttpJsonNetworksStub extends NetworksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networksAddPeeringRequestResource",
-                                      request.getNetworksAddPeeringRequestResource()))
+                                      request.getNetworksAddPeeringRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -273,7 +274,7 @@ public class HttpJsonNetworksStub extends NetworksStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("networkResource", request.getNetworkResource()))
+                              .toBody("networkResource", request.getNetworkResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -437,7 +438,7 @@ public class HttpJsonNetworksStub extends NetworksStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("networkResource", request.getNetworkResource()))
+                              .toBody("networkResource", request.getNetworkResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -491,7 +492,8 @@ public class HttpJsonNetworksStub extends NetworksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networksRemovePeeringRequestResource",
-                                      request.getNetworksRemovePeeringRequestResource()))
+                                      request.getNetworksRemovePeeringRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -594,7 +596,8 @@ public class HttpJsonNetworksStub extends NetworksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networksUpdatePeeringRequestResource",
-                                      request.getNetworksUpdatePeeringRequestResource()))
+                                      request.getNetworksUpdatePeeringRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeGroupsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeGroupsStub.java
index 4cb1c61e5..4e85cc7ce 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeGroupsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeGroupsStub.java
@@ -110,7 +110,8 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "nodeGroupsAddNodesRequestResource",
-                                      request.getNodeGroupsAddNodesRequestResource()))
+                                      request.getNodeGroupsAddNodesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -273,7 +274,8 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "nodeGroupsDeleteNodesRequestResource",
-                                      request.getNodeGroupsDeleteNodesRequestResource()))
+                                      request.getNodeGroupsDeleteNodesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -403,7 +405,8 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("nodeGroupResource", request.getNodeGroupResource()))
+                                  .toBody(
+                                      "nodeGroupResource", request.getNodeGroupResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -563,7 +566,7 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("nodeGroupResource", request.getNodeGroupResource()))
+                              .toBody("nodeGroupResource", request.getNodeGroupResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -616,7 +619,8 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "zoneSetPolicyRequestResource",
-                                      request.getZoneSetPolicyRequestResource()))
+                                      request.getZoneSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -659,7 +663,8 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "nodeGroupsSetNodeTemplateRequestResource",
-                                      request.getNodeGroupsSetNodeTemplateRequestResource()))
+                                      request.getNodeGroupsSetNodeTemplateRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -714,7 +719,8 @@ public class HttpJsonNodeGroupsStub extends NodeGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeTemplatesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeTemplatesStub.java
index dfe600e91..721aca963 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeTemplatesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonNodeTemplatesStub.java
@@ -288,7 +288,9 @@ public class HttpJsonNodeTemplatesStub extends NodeTemplatesStub {
                           request ->
                               ProtoRestSerializer.create()
                                   .toBody(
-                                      "nodeTemplateResource", request.getNodeTemplateResource()))
+                                      "nodeTemplateResource",
+                                      request.getNodeTemplateResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -394,7 +396,8 @@ public class HttpJsonNodeTemplatesStub extends NodeTemplatesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetPolicyRequestResource",
-                                      request.getRegionSetPolicyRequestResource()))
+                                      request.getRegionSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -436,7 +439,8 @@ public class HttpJsonNodeTemplatesStub extends NodeTemplatesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPacketMirroringsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPacketMirroringsStub.java
index 20423c7cf..e83db69bb 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPacketMirroringsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPacketMirroringsStub.java
@@ -246,7 +246,8 @@ public class HttpJsonPacketMirroringsStub extends PacketMirroringsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "packetMirroringResource",
-                                      request.getPacketMirroringResource()))
+                                      request.getPacketMirroringResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -356,7 +357,8 @@ public class HttpJsonPacketMirroringsStub extends PacketMirroringsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "packetMirroringResource",
-                                      request.getPacketMirroringResource()))
+                                      request.getPacketMirroringResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -412,7 +414,8 @@ public class HttpJsonPacketMirroringsStub extends PacketMirroringsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonProjectsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonProjectsStub.java
index 83a00f627..19993e568 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonProjectsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonProjectsStub.java
@@ -152,7 +152,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "projectsDisableXpnResourceRequestResource",
-                                      request.getProjectsDisableXpnResourceRequestResource()))
+                                      request.getProjectsDisableXpnResourceRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -253,7 +254,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "projectsEnableXpnResourceRequestResource",
-                                      request.getProjectsEnableXpnResourceRequestResource()))
+                                      request.getProjectsEnableXpnResourceRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -439,7 +441,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "projectsListXpnHostsRequestResource",
-                                      request.getProjectsListXpnHostsRequestResource()))
+                                      request.getProjectsListXpnHostsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<XpnHostList>newBuilder()
@@ -480,7 +483,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "diskMoveRequestResource",
-                                      request.getDiskMoveRequestResource()))
+                                      request.getDiskMoveRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -533,7 +537,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceMoveRequestResource",
-                                      request.getInstanceMoveRequestResource()))
+                                      request.getInstanceMoveRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -584,7 +589,7 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("metadataResource", request.getMetadataResource()))
+                                  .toBody("metadataResource", request.getMetadataResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -637,7 +642,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "projectsSetDefaultNetworkTierRequestResource",
-                                      request.getProjectsSetDefaultNetworkTierRequestResource()))
+                                      request.getProjectsSetDefaultNetworkTierRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -690,7 +696,8 @@ public class HttpJsonProjectsStub extends ProjectsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "usageExportLocationResource",
-                                      request.getUsageExportLocationResource()))
+                                      request.getUsageExportLocationResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicAdvertisedPrefixesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicAdvertisedPrefixesStub.java
index c2e052a68..548fe0dda 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicAdvertisedPrefixesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicAdvertisedPrefixesStub.java
@@ -185,7 +185,8 @@ public class HttpJsonPublicAdvertisedPrefixesStub extends PublicAdvertisedPrefix
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "publicAdvertisedPrefixResource",
-                                      request.getPublicAdvertisedPrefixResource()))
+                                      request.getPublicAdvertisedPrefixResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -296,7 +297,8 @@ public class HttpJsonPublicAdvertisedPrefixesStub extends PublicAdvertisedPrefix
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "publicAdvertisedPrefixResource",
-                                      request.getPublicAdvertisedPrefixResource()))
+                                      request.getPublicAdvertisedPrefixResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicDelegatedPrefixesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicDelegatedPrefixesStub.java
index ec409fd39..e5450957c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicDelegatedPrefixesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonPublicDelegatedPrefixesStub.java
@@ -250,7 +250,8 @@ public class HttpJsonPublicDelegatedPrefixesStub extends PublicDelegatedPrefixes
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "publicDelegatedPrefixResource",
-                                      request.getPublicDelegatedPrefixResource()))
+                                      request.getPublicDelegatedPrefixResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -364,7 +365,8 @@ public class HttpJsonPublicDelegatedPrefixesStub extends PublicDelegatedPrefixes
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "publicDelegatedPrefixResource",
-                                      request.getPublicDelegatedPrefixResource()))
+                                      request.getPublicDelegatedPrefixResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionAutoscalersStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionAutoscalersStub.java
index 2d7aa64b1..a67dfafa1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionAutoscalersStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionAutoscalersStub.java
@@ -180,7 +180,8 @@ public class HttpJsonRegionAutoscalersStub extends RegionAutoscalersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("autoscalerResource", request.getAutoscalerResource()))
+                                  .toBody(
+                                      "autoscalerResource", request.getAutoscalerResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -290,7 +291,8 @@ public class HttpJsonRegionAutoscalersStub extends RegionAutoscalersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("autoscalerResource", request.getAutoscalerResource()))
+                                  .toBody(
+                                      "autoscalerResource", request.getAutoscalerResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -347,7 +349,8 @@ public class HttpJsonRegionAutoscalersStub extends RegionAutoscalersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("autoscalerResource", request.getAutoscalerResource()))
+                                  .toBody(
+                                      "autoscalerResource", request.getAutoscalerResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionBackendServicesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionBackendServicesStub.java
index 8577febc1..b4ee7a853 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionBackendServicesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionBackendServicesStub.java
@@ -187,7 +187,8 @@ public class HttpJsonRegionBackendServicesStub extends RegionBackendServicesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "resourceGroupReferenceResource",
-                                      request.getResourceGroupReferenceResource()))
+                                      request.getResourceGroupReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<BackendServiceGroupHealth>newBuilder()
@@ -229,7 +230,8 @@ public class HttpJsonRegionBackendServicesStub extends RegionBackendServicesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "backendServiceResource",
-                                      request.getBackendServiceResource()))
+                                      request.getBackendServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -339,7 +341,8 @@ public class HttpJsonRegionBackendServicesStub extends RegionBackendServicesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "backendServiceResource",
-                                      request.getBackendServiceResource()))
+                                      request.getBackendServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -396,7 +399,8 @@ public class HttpJsonRegionBackendServicesStub extends RegionBackendServicesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "backendServiceResource",
-                                      request.getBackendServiceResource()))
+                                      request.getBackendServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionCommitmentsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionCommitmentsStub.java
index 7024a2308..a1f4d64da 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionCommitmentsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionCommitmentsStub.java
@@ -188,7 +188,8 @@ public class HttpJsonRegionCommitmentsStub extends RegionCommitmentsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("commitmentResource", request.getCommitmentResource()))
+                                  .toBody(
+                                      "commitmentResource", request.getCommitmentResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -302,7 +303,8 @@ public class HttpJsonRegionCommitmentsStub extends RegionCommitmentsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("commitmentResource", request.getCommitmentResource()))
+                                  .toBody(
+                                      "commitmentResource", request.getCommitmentResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionDisksStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionDisksStub.java
index 9c48a7d1a..49747a1dd 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionDisksStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionDisksStub.java
@@ -105,7 +105,8 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionDisksAddResourcePoliciesRequestResource",
-                                      request.getRegionDisksAddResourcePoliciesRequestResource()))
+                                      request.getRegionDisksAddResourcePoliciesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -159,7 +160,7 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("snapshotResource", request.getSnapshotResource()))
+                                  .toBody("snapshotResource", request.getSnapshotResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -342,7 +343,7 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("diskResource", request.getDiskResource()))
+                                  .toBody("diskResource", request.getDiskResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -447,8 +448,8 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionDisksRemoveResourcePoliciesRequestResource",
-                                      request
-                                          .getRegionDisksRemoveResourcePoliciesRequestResource()))
+                                      request.getRegionDisksRemoveResourcePoliciesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -504,7 +505,8 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionDisksResizeRequestResource",
-                                      request.getRegionDisksResizeRequestResource()))
+                                      request.getRegionDisksResizeRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -557,7 +559,8 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetPolicyRequestResource",
-                                      request.getRegionSetPolicyRequestResource()))
+                                      request.getRegionSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -600,7 +603,8 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetLabelsRequestResource",
-                                      request.getRegionSetLabelsRequestResource()))
+                                      request.getRegionSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -655,7 +659,8 @@ public class HttpJsonRegionDisksStub extends RegionDisksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthCheckServicesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthCheckServicesStub.java
index dfbc2f689..b168ac6fa 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthCheckServicesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthCheckServicesStub.java
@@ -183,7 +183,8 @@ public class HttpJsonRegionHealthCheckServicesStub extends RegionHealthCheckServ
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "healthCheckServiceResource",
-                                      request.getHealthCheckServiceResource()))
+                                      request.getHealthCheckServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -295,7 +296,8 @@ public class HttpJsonRegionHealthCheckServicesStub extends RegionHealthCheckServ
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "healthCheckServiceResource",
-                                      request.getHealthCheckServiceResource()))
+                                      request.getHealthCheckServiceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthChecksStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthChecksStub.java
index 43b120b45..ea6990d2b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthChecksStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionHealthChecksStub.java
@@ -182,7 +182,10 @@ public class HttpJsonRegionHealthChecksStub extends RegionHealthChecksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("healthCheckResource", request.getHealthCheckResource()))
+                                  .toBody(
+                                      "healthCheckResource",
+                                      request.getHealthCheckResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -290,7 +293,10 @@ public class HttpJsonRegionHealthChecksStub extends RegionHealthChecksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("healthCheckResource", request.getHealthCheckResource()))
+                                  .toBody(
+                                      "healthCheckResource",
+                                      request.getHealthCheckResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -345,7 +351,10 @@ public class HttpJsonRegionHealthChecksStub extends RegionHealthChecksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("healthCheckResource", request.getHealthCheckResource()))
+                                  .toBody(
+                                      "healthCheckResource",
+                                      request.getHealthCheckResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupManagersStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupManagersStub.java
index 0a8b16688..b8acba039 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupManagersStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupManagersStub.java
@@ -122,7 +122,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersAbandonInstancesRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersAbandonInstancesRequestResource()))
+                                          .getRegionInstanceGroupManagersAbandonInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -184,7 +185,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersApplyUpdatesRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersApplyUpdatesRequestResource()))
+                                          .getRegionInstanceGroupManagersApplyUpdatesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -247,7 +249,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersCreateInstancesRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersCreateInstancesRequestResource()))
+                                          .getRegionInstanceGroupManagersCreateInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -362,7 +365,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersDeleteInstancesRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersDeleteInstancesRequestResource()))
+                                          .getRegionInstanceGroupManagersDeleteInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -424,7 +428,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagerDeleteInstanceConfigReqResource",
                                       request
-                                          .getRegionInstanceGroupManagerDeleteInstanceConfigReqResource()))
+                                          .getRegionInstanceGroupManagerDeleteInstanceConfigReqResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -518,7 +523,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupManagerResource",
-                                      request.getInstanceGroupManagerResource()))
+                                      request.getInstanceGroupManagerResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -825,7 +831,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceGroupManagerResource",
-                                      request.getInstanceGroupManagerResource()))
+                                      request.getInstanceGroupManagerResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -889,7 +896,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagerPatchInstanceConfigReqResource",
                                       request
-                                          .getRegionInstanceGroupManagerPatchInstanceConfigReqResource()))
+                                          .getRegionInstanceGroupManagerPatchInstanceConfigReqResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -952,7 +960,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersRecreateRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersRecreateRequestResource()))
+                                          .getRegionInstanceGroupManagersRecreateRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1070,7 +1079,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersSetTemplateRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersSetTemplateRequestResource()))
+                                          .getRegionInstanceGroupManagersSetTemplateRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1133,7 +1143,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagersSetTargetPoolsRequestResource",
                                       request
-                                          .getRegionInstanceGroupManagersSetTargetPoolsRequestResource()))
+                                          .getRegionInstanceGroupManagersSetTargetPoolsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -1197,7 +1208,8 @@ public class HttpJsonRegionInstanceGroupManagersStub extends RegionInstanceGroup
                                   .toBody(
                                       "regionInstanceGroupManagerUpdateInstanceConfigReqResource",
                                       request
-                                          .getRegionInstanceGroupManagerUpdateInstanceConfigReqResource()))
+                                          .getRegionInstanceGroupManagerUpdateInstanceConfigReqResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupsStub.java
index a0c91737e..86861c293 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstanceGroupsStub.java
@@ -207,8 +207,8 @@ public class HttpJsonRegionInstanceGroupsStub extends RegionInstanceGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionInstanceGroupsListInstancesRequestResource",
-                                      request
-                                          .getRegionInstanceGroupsListInstancesRequestResource()))
+                                      request.getRegionInstanceGroupsListInstancesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<RegionInstanceGroupsListInstances>newBuilder()
@@ -252,8 +252,8 @@ public class HttpJsonRegionInstanceGroupsStub extends RegionInstanceGroupsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionInstanceGroupsSetNamedPortsRequestResource",
-                                      request
-                                          .getRegionInstanceGroupsSetNamedPortsRequestResource()))
+                                      request.getRegionInstanceGroupsSetNamedPortsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstancesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstancesStub.java
index 047e35ec2..22ac04043 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstancesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionInstancesStub.java
@@ -87,7 +87,8 @@ public class HttpJsonRegionInstancesStub extends RegionInstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "bulkInsertInstanceResourceResource",
-                                      request.getBulkInsertInstanceResourceResource()))
+                                      request.getBulkInsertInstanceResourceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkEndpointGroupsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkEndpointGroupsStub.java
index dd533bdc7..249087ba1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkEndpointGroupsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkEndpointGroupsStub.java
@@ -184,7 +184,8 @@ public class HttpJsonRegionNetworkEndpointGroupsStub extends RegionNetworkEndpoi
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "networkEndpointGroupResource",
-                                      request.getNetworkEndpointGroupResource()))
+                                      request.getNetworkEndpointGroupResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkFirewallPoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkFirewallPoliciesStub.java
index 57146cb05..3f17a18f1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkFirewallPoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNetworkFirewallPoliciesStub.java
@@ -124,7 +124,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyAssociationResource",
-                                      request.getFirewallPolicyAssociationResource()))
+                                      request.getFirewallPolicyAssociationResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -191,7 +192,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyRuleResource",
-                                      request.getFirewallPolicyRuleResource()))
+                                      request.getFirewallPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -571,7 +573,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyResource",
-                                      request.getFirewallPolicyResource()))
+                                      request.getFirewallPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -684,7 +687,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyResource",
-                                      request.getFirewallPolicyResource()))
+                                      request.getFirewallPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -745,7 +749,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "firewallPolicyRuleResource",
-                                      request.getFirewallPolicyRuleResource()))
+                                      request.getFirewallPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -916,7 +921,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetPolicyRequestResource",
-                                      request.getRegionSetPolicyRequestResource()))
+                                      request.getRegionSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -963,7 +969,8 @@ public class HttpJsonRegionNetworkFirewallPoliciesStub extends RegionNetworkFire
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNotificationEndpointsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNotificationEndpointsStub.java
index 461c1f624..4e8acf681 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNotificationEndpointsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionNotificationEndpointsStub.java
@@ -184,7 +184,8 @@ public class HttpJsonRegionNotificationEndpointsStub extends RegionNotificationE
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "notificationEndpointResource",
-                                      request.getNotificationEndpointResource()))
+                                      request.getNotificationEndpointResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSecurityPoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSecurityPoliciesStub.java
index 9b5f32ad0..c4e257b78 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSecurityPoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSecurityPoliciesStub.java
@@ -187,7 +187,8 @@ public class HttpJsonRegionSecurityPoliciesStub extends RegionSecurityPoliciesSt
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyResource",
-                                      request.getSecurityPolicyResource()))
+                                      request.getSecurityPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -297,7 +298,8 @@ public class HttpJsonRegionSecurityPoliciesStub extends RegionSecurityPoliciesSt
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyResource",
-                                      request.getSecurityPolicyResource()))
+                                      request.getSecurityPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSslCertificatesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSslCertificatesStub.java
index 1858bd587..49cffa7c6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSslCertificatesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionSslCertificatesStub.java
@@ -182,7 +182,8 @@ public class HttpJsonRegionSslCertificatesStub extends RegionSslCertificatesStub
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "sslCertificateResource",
-                                      request.getSslCertificateResource()))
+                                      request.getSslCertificateResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpProxiesStub.java
index d16b02b4e..e629171b9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpProxiesStub.java
@@ -183,7 +183,8 @@ public class HttpJsonRegionTargetHttpProxiesStub extends RegionTargetHttpProxies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpProxyResource",
-                                      request.getTargetHttpProxyResource()))
+                                      request.getTargetHttpProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -293,7 +294,8 @@ public class HttpJsonRegionTargetHttpProxiesStub extends RegionTargetHttpProxies
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "urlMapReferenceResource",
-                                      request.getUrlMapReferenceResource()))
+                                      request.getUrlMapReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpsProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpsProxiesStub.java
index 3f4390a4a..33a4fa54a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpsProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionTargetHttpsProxiesStub.java
@@ -185,7 +185,8 @@ public class HttpJsonRegionTargetHttpsProxiesStub extends RegionTargetHttpsProxi
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpsProxyResource",
-                                      request.getTargetHttpsProxyResource()))
+                                      request.getTargetHttpsProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -297,7 +298,8 @@ public class HttpJsonRegionTargetHttpsProxiesStub extends RegionTargetHttpsProxi
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpsProxyResource",
-                                      request.getTargetHttpsProxyResource()))
+                                      request.getTargetHttpsProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -359,7 +361,8 @@ public class HttpJsonRegionTargetHttpsProxiesStub extends RegionTargetHttpsProxi
                                   .toBody(
                                       "regionTargetHttpsProxiesSetSslCertificatesRequestResource",
                                       request
-                                          .getRegionTargetHttpsProxiesSetSslCertificatesRequestResource()))
+                                          .getRegionTargetHttpsProxiesSetSslCertificatesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -416,7 +419,8 @@ public class HttpJsonRegionTargetHttpsProxiesStub extends RegionTargetHttpsProxi
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "urlMapReferenceResource",
-                                      request.getUrlMapReferenceResource()))
+                                      request.getUrlMapReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionUrlMapsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionUrlMapsStub.java
index 78bea1c89..48ebec4a3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionUrlMapsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRegionUrlMapsStub.java
@@ -181,7 +181,7 @@ public class HttpJsonRegionUrlMapsStub extends RegionUrlMapsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("urlMapResource", request.getUrlMapResource()))
+                                  .toBody("urlMapResource", request.getUrlMapResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -288,7 +288,7 @@ public class HttpJsonRegionUrlMapsStub extends RegionUrlMapsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("urlMapResource", request.getUrlMapResource()))
+                                  .toBody("urlMapResource", request.getUrlMapResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -342,7 +342,7 @@ public class HttpJsonRegionUrlMapsStub extends RegionUrlMapsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("urlMapResource", request.getUrlMapResource()))
+                                  .toBody("urlMapResource", request.getUrlMapResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -395,7 +395,8 @@ public class HttpJsonRegionUrlMapsStub extends RegionUrlMapsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionUrlMapsValidateRequestResource",
-                                      request.getRegionUrlMapsValidateRequestResource()))
+                                      request.getRegionUrlMapsValidateRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<UrlMapsValidateResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonReservationsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonReservationsStub.java
index 7290ffb2b..6aa6d844d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonReservationsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonReservationsStub.java
@@ -287,7 +287,10 @@ public class HttpJsonReservationsStub extends ReservationsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("reservationResource", request.getReservationResource()))
+                                  .toBody(
+                                      "reservationResource",
+                                      request.getReservationResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -397,7 +400,8 @@ public class HttpJsonReservationsStub extends ReservationsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "reservationsResizeRequestResource",
-                                      request.getReservationsResizeRequestResource()))
+                                      request.getReservationsResizeRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -450,7 +454,8 @@ public class HttpJsonReservationsStub extends ReservationsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "zoneSetPolicyRequestResource",
-                                      request.getZoneSetPolicyRequestResource()))
+                                      request.getZoneSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -492,7 +497,8 @@ public class HttpJsonReservationsStub extends ReservationsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
@@ -541,7 +547,10 @@ public class HttpJsonReservationsStub extends ReservationsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("reservationResource", request.getReservationResource()))
+                                  .toBody(
+                                      "reservationResource",
+                                      request.getReservationResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonResourcePoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonResourcePoliciesStub.java
index 06ec2199b..36a596df7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonResourcePoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonResourcePoliciesStub.java
@@ -289,7 +289,8 @@ public class HttpJsonResourcePoliciesStub extends ResourcePoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "resourcePolicyResource",
-                                      request.getResourcePolicyResource()))
+                                      request.getResourcePolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -395,7 +396,8 @@ public class HttpJsonResourcePoliciesStub extends ResourcePoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetPolicyRequestResource",
-                                      request.getRegionSetPolicyRequestResource()))
+                                      request.getRegionSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -437,7 +439,8 @@ public class HttpJsonResourcePoliciesStub extends ResourcePoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutersStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutersStub.java
index ba8c7d352..f80318971 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutersStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutersStub.java
@@ -334,7 +334,7 @@ public class HttpJsonRoutersStub extends RoutersStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("routerResource", request.getRouterResource()))
+                              .toBody("routerResource", request.getRouterResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -436,7 +436,7 @@ public class HttpJsonRoutersStub extends RoutersStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("routerResource", request.getRouterResource()))
+                              .toBody("routerResource", request.getRouterResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -487,7 +487,7 @@ public class HttpJsonRoutersStub extends RoutersStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("routerResource", request.getRouterResource()))
+                                  .toBody("routerResource", request.getRouterResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<RoutersPreviewResponse>newBuilder()
@@ -527,7 +527,7 @@ public class HttpJsonRoutersStub extends RoutersStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("routerResource", request.getRouterResource()))
+                              .toBody("routerResource", request.getRouterResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutesStub.java
index 63cf6fd3f..f2b58caaf 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonRoutesStub.java
@@ -171,7 +171,7 @@ public class HttpJsonRoutesStub extends RoutesStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("routeResource", request.getRouteResource()))
+                              .toBody("routeResource", request.getRouteResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSecurityPoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSecurityPoliciesStub.java
index 53df1b842..d06062e3d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSecurityPoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSecurityPoliciesStub.java
@@ -107,7 +107,8 @@ public class HttpJsonSecurityPoliciesStub extends SecurityPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyRuleResource",
-                                      request.getSecurityPolicyRuleResource()))
+                                      request.getSecurityPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -345,7 +346,8 @@ public class HttpJsonSecurityPoliciesStub extends SecurityPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyResource",
-                                      request.getSecurityPolicyResource()))
+                                      request.getSecurityPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -516,7 +518,8 @@ public class HttpJsonSecurityPoliciesStub extends SecurityPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyResource",
-                                      request.getSecurityPolicyResource()))
+                                      request.getSecurityPolicyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -575,7 +578,8 @@ public class HttpJsonSecurityPoliciesStub extends SecurityPoliciesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "securityPolicyRuleResource",
-                                      request.getSecurityPolicyRuleResource()))
+                                      request.getSecurityPolicyRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonServiceAttachmentsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonServiceAttachmentsStub.java
index 93345fc54..ba1fd394a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonServiceAttachmentsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonServiceAttachmentsStub.java
@@ -291,7 +291,8 @@ public class HttpJsonServiceAttachmentsStub extends ServiceAttachmentsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "serviceAttachmentResource",
-                                      request.getServiceAttachmentResource()))
+                                      request.getServiceAttachmentResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -401,7 +402,8 @@ public class HttpJsonServiceAttachmentsStub extends ServiceAttachmentsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "serviceAttachmentResource",
-                                      request.getServiceAttachmentResource()))
+                                      request.getServiceAttachmentResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -454,7 +456,8 @@ public class HttpJsonServiceAttachmentsStub extends ServiceAttachmentsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetPolicyRequestResource",
-                                      request.getRegionSetPolicyRequestResource()))
+                                      request.getRegionSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -497,7 +500,8 @@ public class HttpJsonServiceAttachmentsStub extends ServiceAttachmentsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSnapshotsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSnapshotsStub.java
index 0b43098f8..3307840eb 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSnapshotsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSnapshotsStub.java
@@ -219,7 +219,7 @@ public class HttpJsonSnapshotsStub extends SnapshotsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("snapshotResource", request.getSnapshotResource()))
+                                  .toBody("snapshotResource", request.getSnapshotResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -322,7 +322,8 @@ public class HttpJsonSnapshotsStub extends SnapshotsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetPolicyRequestResource",
-                                      request.getGlobalSetPolicyRequestResource()))
+                                      request.getGlobalSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -361,7 +362,8 @@ public class HttpJsonSnapshotsStub extends SnapshotsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "globalSetLabelsRequestResource",
-                                      request.getGlobalSetLabelsRequestResource()))
+                                      request.getGlobalSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -414,7 +416,8 @@ public class HttpJsonSnapshotsStub extends SnapshotsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslCertificatesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslCertificatesStub.java
index 44a0584e1..1d96f4cf4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslCertificatesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslCertificatesStub.java
@@ -239,7 +239,8 @@ public class HttpJsonSslCertificatesStub extends SslCertificatesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "sslCertificateResource",
-                                      request.getSslCertificateResource()))
+                                      request.getSslCertificateResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslPoliciesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslPoliciesStub.java
index 2d6ee01dd..00edebdfb 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslPoliciesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSslPoliciesStub.java
@@ -176,7 +176,8 @@ public class HttpJsonSslPoliciesStub extends SslPoliciesStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("sslPolicyResource", request.getSslPolicyResource()))
+                                  .toBody(
+                                      "sslPolicyResource", request.getSslPolicyResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -335,7 +336,7 @@ public class HttpJsonSslPoliciesStub extends SslPoliciesStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("sslPolicyResource", request.getSslPolicyResource()))
+                              .toBody("sslPolicyResource", request.getSslPolicyResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSubnetworksStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSubnetworksStub.java
index eb0a5ab5f..d0d92cb75 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSubnetworksStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonSubnetworksStub.java
@@ -218,7 +218,8 @@ public class HttpJsonSubnetworksStub extends SubnetworksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "subnetworksExpandIpCidrRangeRequestResource",
-                                      request.getSubnetworksExpandIpCidrRangeRequestResource()))
+                                      request.getSubnetworksExpandIpCidrRangeRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -346,7 +347,8 @@ public class HttpJsonSubnetworksStub extends SubnetworksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("subnetworkResource", request.getSubnetworkResource()))
+                                  .toBody(
+                                      "subnetworkResource", request.getSubnetworkResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -511,7 +513,8 @@ public class HttpJsonSubnetworksStub extends SubnetworksStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("subnetworkResource", request.getSubnetworkResource()))
+                                  .toBody(
+                                      "subnetworkResource", request.getSubnetworkResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -564,7 +567,8 @@ public class HttpJsonSubnetworksStub extends SubnetworksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetPolicyRequestResource",
-                                      request.getRegionSetPolicyRequestResource()))
+                                      request.getRegionSetPolicyRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Policy>newBuilder()
@@ -609,7 +613,8 @@ public class HttpJsonSubnetworksStub extends SubnetworksStub {
                                   .toBody(
                                       "subnetworksSetPrivateIpGoogleAccessRequestResource",
                                       request
-                                          .getSubnetworksSetPrivateIpGoogleAccessRequestResource()))
+                                          .getSubnetworksSetPrivateIpGoogleAccessRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -664,7 +669,8 @@ public class HttpJsonSubnetworksStub extends SubnetworksStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetGrpcProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetGrpcProxiesStub.java
index c45420c28..3130b4382 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetGrpcProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetGrpcProxiesStub.java
@@ -179,7 +179,8 @@ public class HttpJsonTargetGrpcProxiesStub extends TargetGrpcProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetGrpcProxyResource",
-                                      request.getTargetGrpcProxyResource()))
+                                      request.getTargetGrpcProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -286,7 +287,8 @@ public class HttpJsonTargetGrpcProxiesStub extends TargetGrpcProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetGrpcProxyResource",
-                                      request.getTargetGrpcProxyResource()))
+                                      request.getTargetGrpcProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpProxiesStub.java
index 04a4167e0..d5c9ced00 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpProxiesStub.java
@@ -241,7 +241,8 @@ public class HttpJsonTargetHttpProxiesStub extends TargetHttpProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpProxyResource",
-                                      request.getTargetHttpProxyResource()))
+                                      request.getTargetHttpProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -348,7 +349,8 @@ public class HttpJsonTargetHttpProxiesStub extends TargetHttpProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpProxyResource",
-                                      request.getTargetHttpProxyResource()))
+                                      request.getTargetHttpProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -403,7 +405,8 @@ public class HttpJsonTargetHttpProxiesStub extends TargetHttpProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "urlMapReferenceResource",
-                                      request.getUrlMapReferenceResource()))
+                                      request.getUrlMapReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpsProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpsProxiesStub.java
index d82003608..d8e1f5bb6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpsProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetHttpsProxiesStub.java
@@ -245,7 +245,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpsProxyResource",
-                                      request.getTargetHttpsProxyResource()))
+                                      request.getTargetHttpsProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -352,7 +353,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpsProxyResource",
-                                      request.getTargetHttpsProxyResource()))
+                                      request.getTargetHttpsProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -409,7 +411,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                                   .toBody(
                                       "targetHttpsProxiesSetCertificateMapRequestResource",
                                       request
-                                          .getTargetHttpsProxiesSetCertificateMapRequestResource()))
+                                          .getTargetHttpsProxiesSetCertificateMapRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -464,8 +467,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetHttpsProxiesSetQuicOverrideRequestResource",
-                                      request
-                                          .getTargetHttpsProxiesSetQuicOverrideRequestResource()))
+                                      request.getTargetHttpsProxiesSetQuicOverrideRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -522,7 +525,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                                   .toBody(
                                       "targetHttpsProxiesSetSslCertificatesRequestResource",
                                       request
-                                          .getTargetHttpsProxiesSetSslCertificatesRequestResource()))
+                                          .getTargetHttpsProxiesSetSslCertificatesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -577,7 +581,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "sslPolicyReferenceResource",
-                                      request.getSslPolicyReferenceResource()))
+                                      request.getSslPolicyReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -632,7 +637,8 @@ public class HttpJsonTargetHttpsProxiesStub extends TargetHttpsProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "urlMapReferenceResource",
-                                      request.getUrlMapReferenceResource()))
+                                      request.getUrlMapReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetInstancesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetInstancesStub.java
index dd00088e2..ce3952eb9 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetInstancesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetInstancesStub.java
@@ -243,7 +243,8 @@ public class HttpJsonTargetInstancesStub extends TargetInstancesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetInstanceResource",
-                                      request.getTargetInstanceResource()))
+                                      request.getTargetInstanceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetPoolsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetPoolsStub.java
index d64f50574..4f977446c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetPoolsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetPoolsStub.java
@@ -105,7 +105,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetPoolsAddHealthCheckRequestResource",
-                                      request.getTargetPoolsAddHealthCheckRequestResource()))
+                                      request.getTargetPoolsAddHealthCheckRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -161,7 +162,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetPoolsAddInstanceRequestResource",
-                                      request.getTargetPoolsAddInstanceRequestResource()))
+                                      request.getTargetPoolsAddInstanceRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -357,7 +359,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "instanceReferenceResource",
-                                      request.getInstanceReferenceResource()))
+                                      request.getInstanceReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TargetPoolInstanceHealth>newBuilder()
@@ -397,7 +400,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("targetPoolResource", request.getTargetPoolResource()))
+                                  .toBody(
+                                      "targetPoolResource", request.getTargetPoolResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -506,7 +510,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetPoolsRemoveHealthCheckRequestResource",
-                                      request.getTargetPoolsRemoveHealthCheckRequestResource()))
+                                      request.getTargetPoolsRemoveHealthCheckRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -562,7 +567,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetPoolsRemoveInstanceRequestResource",
-                                      request.getTargetPoolsRemoveInstanceRequestResource()))
+                                      request.getTargetPoolsRemoveInstanceRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -622,7 +628,8 @@ public class HttpJsonTargetPoolsStub extends TargetPoolsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetReferenceResource",
-                                      request.getTargetReferenceResource()))
+                                      request.getTargetReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetSslProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetSslProxiesStub.java
index f22d75a24..7a4e7ca88 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetSslProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetSslProxiesStub.java
@@ -183,7 +183,8 @@ public class HttpJsonTargetSslProxiesStub extends TargetSslProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetSslProxyResource",
-                                      request.getTargetSslProxyResource()))
+                                      request.getTargetSslProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -290,8 +291,8 @@ public class HttpJsonTargetSslProxiesStub extends TargetSslProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetSslProxiesSetBackendServiceRequestResource",
-                                      request
-                                          .getTargetSslProxiesSetBackendServiceRequestResource()))
+                                      request.getTargetSslProxiesSetBackendServiceRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -346,8 +347,8 @@ public class HttpJsonTargetSslProxiesStub extends TargetSslProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetSslProxiesSetCertificateMapRequestResource",
-                                      request
-                                          .getTargetSslProxiesSetCertificateMapRequestResource()))
+                                      request.getTargetSslProxiesSetCertificateMapRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -402,7 +403,8 @@ public class HttpJsonTargetSslProxiesStub extends TargetSslProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetSslProxiesSetProxyHeaderRequestResource",
-                                      request.getTargetSslProxiesSetProxyHeaderRequestResource()))
+                                      request.getTargetSslProxiesSetProxyHeaderRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -458,7 +460,8 @@ public class HttpJsonTargetSslProxiesStub extends TargetSslProxiesStub {
                                   .toBody(
                                       "targetSslProxiesSetSslCertificatesRequestResource",
                                       request
-                                          .getTargetSslProxiesSetSslCertificatesRequestResource()))
+                                          .getTargetSslProxiesSetSslCertificatesRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -513,7 +516,8 @@ public class HttpJsonTargetSslProxiesStub extends TargetSslProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "sslPolicyReferenceResource",
-                                      request.getSslPolicyReferenceResource()))
+                                      request.getSslPolicyReferenceResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetTcpProxiesStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetTcpProxiesStub.java
index 7b557c074..f58fbeb18 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetTcpProxiesStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetTcpProxiesStub.java
@@ -180,7 +180,8 @@ public class HttpJsonTargetTcpProxiesStub extends TargetTcpProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetTcpProxyResource",
-                                      request.getTargetTcpProxyResource()))
+                                      request.getTargetTcpProxyResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -287,8 +288,8 @@ public class HttpJsonTargetTcpProxiesStub extends TargetTcpProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetTcpProxiesSetBackendServiceRequestResource",
-                                      request
-                                          .getTargetTcpProxiesSetBackendServiceRequestResource()))
+                                      request.getTargetTcpProxiesSetBackendServiceRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -343,7 +344,8 @@ public class HttpJsonTargetTcpProxiesStub extends TargetTcpProxiesStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetTcpProxiesSetProxyHeaderRequestResource",
-                                      request.getTargetTcpProxiesSetProxyHeaderRequestResource()))
+                                      request.getTargetTcpProxiesSetProxyHeaderRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetVpnGatewaysStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetVpnGatewaysStub.java
index 3dc9d0ee3..2b10ae85b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetVpnGatewaysStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonTargetVpnGatewaysStub.java
@@ -243,7 +243,8 @@ public class HttpJsonTargetVpnGatewaysStub extends TargetVpnGatewaysStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "targetVpnGatewayResource",
-                                      request.getTargetVpnGatewayResource()))
+                                      request.getTargetVpnGatewayResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonUrlMapsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonUrlMapsStub.java
index a2d44a454..359de1dad 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonUrlMapsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonUrlMapsStub.java
@@ -235,7 +235,7 @@ public class HttpJsonUrlMapsStub extends UrlMapsStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("urlMapResource", request.getUrlMapResource()))
+                              .toBody("urlMapResource", request.getUrlMapResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -289,7 +289,8 @@ public class HttpJsonUrlMapsStub extends UrlMapsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "cacheInvalidationRuleResource",
-                                      request.getCacheInvalidationRuleResource()))
+                                      request.getCacheInvalidationRuleResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -388,7 +389,7 @@ public class HttpJsonUrlMapsStub extends UrlMapsStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("urlMapResource", request.getUrlMapResource()))
+                              .toBody("urlMapResource", request.getUrlMapResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -439,7 +440,7 @@ public class HttpJsonUrlMapsStub extends UrlMapsStub {
                   .setRequestBodyExtractor(
                       request ->
                           ProtoRestSerializer.create()
-                              .toBody("urlMapResource", request.getUrlMapResource()))
+                              .toBody("urlMapResource", request.getUrlMapResource(), false))
                   .build())
           .setResponseParser(
               ProtoMessageResponseParser.<Operation>newBuilder()
@@ -490,7 +491,8 @@ public class HttpJsonUrlMapsStub extends UrlMapsStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "urlMapsValidateRequestResource",
-                                      request.getUrlMapsValidateRequestResource()))
+                                      request.getUrlMapsValidateRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<UrlMapsValidateResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnGatewaysStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnGatewaysStub.java
index b3aaec4c1..4edb294cd 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnGatewaysStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnGatewaysStub.java
@@ -278,7 +278,8 @@ public class HttpJsonVpnGatewaysStub extends VpnGatewaysStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("vpnGatewayResource", request.getVpnGatewayResource()))
+                                  .toBody(
+                                      "vpnGatewayResource", request.getVpnGatewayResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -387,7 +388,8 @@ public class HttpJsonVpnGatewaysStub extends VpnGatewaysStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "regionSetLabelsRequestResource",
-                                      request.getRegionSetLabelsRequestResource()))
+                                      request.getRegionSetLabelsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
@@ -442,7 +444,8 @@ public class HttpJsonVpnGatewaysStub extends VpnGatewaysStub {
                               ProtoRestSerializer.create()
                                   .toBody(
                                       "testPermissionsRequestResource",
-                                      request.getTestPermissionsRequestResource()))
+                                      request.getTestPermissionsRequestResource(),
+                                      false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<TestPermissionsResponse>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnTunnelsStub.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnTunnelsStub.java
index bdc2454e7..2a0a7cae7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnTunnelsStub.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/HttpJsonVpnTunnelsStub.java
@@ -236,7 +236,8 @@ public class HttpJsonVpnTunnelsStub extends VpnTunnelsStub {
                       .setRequestBodyExtractor(
                           request ->
                               ProtoRestSerializer.create()
-                                  .toBody("vpnTunnelResource", request.getVpnTunnelResource()))
+                                  .toBody(
+                                      "vpnTunnelResource", request.getVpnTunnelResource(), false))
                       .build())
               .setResponseParser(
                   ProtoMessageResponseParser.<Operation>newBuilder()
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImageFamilyViewsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImageFamilyViewsStubSettings.java
index 08f91acfd..4c34f984a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImageFamilyViewsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImageFamilyViewsStubSettings.java
@@ -60,17 +60,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImageFamilyViewsStubSettings.Builder imageFamilyViewsSettingsBuilder =
  *     ImageFamilyViewsStubSettings.newBuilder();
  * imageFamilyViewsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         imageFamilyViewsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         imageFamilyViewsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ImageFamilyViewsStubSettings imageFamilyViewsSettings = imageFamilyViewsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImagesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImagesStubSettings.java
index d6d79a312..1383c7909 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImagesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ImagesStubSettings.java
@@ -87,16 +87,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ImagesStubSettings.Builder imagesSettingsBuilder = ImagesStubSettings.newBuilder();
  * imagesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         imagesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         imagesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ImagesStubSettings imagesSettings = imagesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupManagersStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupManagersStubSettings.java
index 5edec1546..e13fc9052 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupManagersStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupManagersStubSettings.java
@@ -108,17 +108,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupManagersStubSettings.Builder instanceGroupManagersSettingsBuilder =
  *     InstanceGroupManagersStubSettings.newBuilder();
  * instanceGroupManagersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instanceGroupManagersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instanceGroupManagersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstanceGroupManagersStubSettings instanceGroupManagersSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupsStubSettings.java
index bad1e19fa..b65f1d512 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceGroupsStubSettings.java
@@ -91,17 +91,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceGroupsStubSettings.Builder instanceGroupsSettingsBuilder =
  *     InstanceGroupsStubSettings.newBuilder();
  * instanceGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instanceGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instanceGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstanceGroupsStubSettings instanceGroupsSettings = instanceGroupsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceTemplatesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceTemplatesStubSettings.java
index f61d17d4b..6ea855fcc 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceTemplatesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstanceTemplatesStubSettings.java
@@ -83,17 +83,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstanceTemplatesStubSettings.Builder instanceTemplatesSettingsBuilder =
  *     InstanceTemplatesStubSettings.newBuilder();
  * instanceTemplatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instanceTemplatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instanceTemplatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstanceTemplatesStubSettings instanceTemplatesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstancesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstancesStubSettings.java
index ae7d80889..1b42d520f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstancesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InstancesStubSettings.java
@@ -135,16 +135,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InstancesStubSettings.Builder instancesSettingsBuilder = InstancesStubSettings.newBuilder();
  * instancesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         instancesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         instancesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InstancesStubSettings instancesSettings = instancesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectAttachmentsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectAttachmentsStubSettings.java
index 3c086201c..c6de2cc4c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectAttachmentsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectAttachmentsStubSettings.java
@@ -85,17 +85,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectAttachmentsStubSettings.Builder interconnectAttachmentsSettingsBuilder =
  *     InterconnectAttachmentsStubSettings.newBuilder();
  * interconnectAttachmentsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         interconnectAttachmentsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         interconnectAttachmentsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InterconnectAttachmentsStubSettings interconnectAttachmentsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectLocationsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectLocationsStubSettings.java
index 4e51ce6f3..60034d5c2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectLocationsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectLocationsStubSettings.java
@@ -71,17 +71,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectLocationsStubSettings.Builder interconnectLocationsSettingsBuilder =
  *     InterconnectLocationsStubSettings.newBuilder();
  * interconnectLocationsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         interconnectLocationsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         interconnectLocationsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InterconnectLocationsStubSettings interconnectLocationsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectsStubSettings.java
index 72bfe9c9a..97df03d45 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/InterconnectsStubSettings.java
@@ -81,17 +81,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * InterconnectsStubSettings.Builder interconnectsSettingsBuilder =
  *     InterconnectsStubSettings.newBuilder();
  * interconnectsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         interconnectsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         interconnectsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * InterconnectsStubSettings interconnectsSettings = interconnectsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicenseCodesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicenseCodesStubSettings.java
index acd08f57c..043cb702b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicenseCodesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicenseCodesStubSettings.java
@@ -62,17 +62,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicenseCodesStubSettings.Builder licenseCodesSettingsBuilder =
  *     LicenseCodesStubSettings.newBuilder();
  * licenseCodesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         licenseCodesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         licenseCodesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * LicenseCodesStubSettings licenseCodesSettings = licenseCodesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicensesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicensesStubSettings.java
index 5ecc25f1d..33032e234 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicensesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/LicensesStubSettings.java
@@ -83,16 +83,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * LicensesStubSettings.Builder licensesSettingsBuilder = LicensesStubSettings.newBuilder();
  * licensesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         licensesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         licensesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * LicensesStubSettings licensesSettings = licensesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineImagesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineImagesStubSettings.java
index f3a8bda9e..fdd4f9af8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineImagesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineImagesStubSettings.java
@@ -83,17 +83,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineImagesStubSettings.Builder machineImagesSettingsBuilder =
  *     MachineImagesStubSettings.newBuilder();
  * machineImagesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         machineImagesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         machineImagesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * MachineImagesStubSettings machineImagesSettings = machineImagesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineTypesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineTypesStubSettings.java
index 88138a4e2..8a3d13db6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineTypesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/MachineTypesStubSettings.java
@@ -77,17 +77,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * MachineTypesStubSettings.Builder machineTypesSettingsBuilder =
  *     MachineTypesStubSettings.newBuilder();
  * machineTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         machineTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         machineTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * MachineTypesStubSettings machineTypesSettings = machineTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEdgeSecurityServicesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEdgeSecurityServicesStubSettings.java
index 8a7938cf0..99ac328f7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEdgeSecurityServicesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEdgeSecurityServicesStubSettings.java
@@ -82,17 +82,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEdgeSecurityServicesStubSettings.Builder networkEdgeSecurityServicesSettingsBuilder =
  *     NetworkEdgeSecurityServicesStubSettings.newBuilder();
  * networkEdgeSecurityServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networkEdgeSecurityServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networkEdgeSecurityServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworkEdgeSecurityServicesStubSettings networkEdgeSecurityServicesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEndpointGroupsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEndpointGroupsStubSettings.java
index 995102780..b013ef5ac 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEndpointGroupsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkEndpointGroupsStubSettings.java
@@ -92,17 +92,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkEndpointGroupsStubSettings.Builder networkEndpointGroupsSettingsBuilder =
  *     NetworkEndpointGroupsStubSettings.newBuilder();
  * networkEndpointGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networkEndpointGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networkEndpointGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworkEndpointGroupsStubSettings networkEndpointGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkFirewallPoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkFirewallPoliciesStubSettings.java
index 4458f5852..ccbe7941d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkFirewallPoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworkFirewallPoliciesStubSettings.java
@@ -94,17 +94,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworkFirewallPoliciesStubSettings.Builder networkFirewallPoliciesSettingsBuilder =
  *     NetworkFirewallPoliciesStubSettings.newBuilder();
  * networkFirewallPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networkFirewallPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networkFirewallPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworkFirewallPoliciesStubSettings networkFirewallPoliciesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworksStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworksStubSettings.java
index f30e23950..b353b60e6 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworksStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NetworksStubSettings.java
@@ -89,16 +89,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NetworksStubSettings.Builder networksSettingsBuilder = NetworksStubSettings.newBuilder();
  * networksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         networksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         networksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NetworksStubSettings networksSettings = networksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeGroupsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeGroupsStubSettings.java
index 34730ef86..9053b23b4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeGroupsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeGroupsStubSettings.java
@@ -97,16 +97,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeGroupsStubSettings.Builder nodeGroupsSettingsBuilder = NodeGroupsStubSettings.newBuilder();
  * nodeGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         nodeGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         nodeGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NodeGroupsStubSettings nodeGroupsSettings = nodeGroupsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTemplatesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTemplatesStubSettings.java
index c814e082c..1c7f06bf2 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTemplatesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTemplatesStubSettings.java
@@ -89,17 +89,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTemplatesStubSettings.Builder nodeTemplatesSettingsBuilder =
  *     NodeTemplatesStubSettings.newBuilder();
  * nodeTemplatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         nodeTemplatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         nodeTemplatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NodeTemplatesStubSettings nodeTemplatesSettings = nodeTemplatesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTypesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTypesStubSettings.java
index d58db288b..c65d9e4e8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTypesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/NodeTypesStubSettings.java
@@ -77,16 +77,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * NodeTypesStubSettings.Builder nodeTypesSettingsBuilder = NodeTypesStubSettings.newBuilder();
  * nodeTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         nodeTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         nodeTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * NodeTypesStubSettings nodeTypesSettings = nodeTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PacketMirroringsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PacketMirroringsStubSettings.java
index 9ee9c4e0b..b8afed09f 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PacketMirroringsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PacketMirroringsStubSettings.java
@@ -87,17 +87,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PacketMirroringsStubSettings.Builder packetMirroringsSettingsBuilder =
  *     PacketMirroringsStubSettings.newBuilder();
  * packetMirroringsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         packetMirroringsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         packetMirroringsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * PacketMirroringsStubSettings packetMirroringsSettings = packetMirroringsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ProjectsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ProjectsStubSettings.java
index 6c26d1cd3..2592d72e0 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ProjectsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ProjectsStubSettings.java
@@ -90,16 +90,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ProjectsStubSettings.Builder projectsSettingsBuilder = ProjectsStubSettings.newBuilder();
  * projectsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         projectsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         projectsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ProjectsStubSettings projectsSettings = projectsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicAdvertisedPrefixesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicAdvertisedPrefixesStubSettings.java
index dd7020c49..b58022bfb 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicAdvertisedPrefixesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicAdvertisedPrefixesStubSettings.java
@@ -79,17 +79,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicAdvertisedPrefixesStubSettings.Builder publicAdvertisedPrefixesSettingsBuilder =
  *     PublicAdvertisedPrefixesStubSettings.newBuilder();
  * publicAdvertisedPrefixesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         publicAdvertisedPrefixesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         publicAdvertisedPrefixesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * PublicAdvertisedPrefixesStubSettings publicAdvertisedPrefixesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicDelegatedPrefixesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicDelegatedPrefixesStubSettings.java
index 31b585502..6b08be413 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicDelegatedPrefixesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/PublicDelegatedPrefixesStubSettings.java
@@ -85,17 +85,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * PublicDelegatedPrefixesStubSettings.Builder publicDelegatedPrefixesSettingsBuilder =
  *     PublicDelegatedPrefixesStubSettings.newBuilder();
  * publicDelegatedPrefixesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         publicDelegatedPrefixesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         publicDelegatedPrefixesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * PublicDelegatedPrefixesStubSettings publicDelegatedPrefixesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionAutoscalersStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionAutoscalersStubSettings.java
index c89a4967c..9acaefe36 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionAutoscalersStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionAutoscalersStubSettings.java
@@ -80,17 +80,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionAutoscalersStubSettings.Builder regionAutoscalersSettingsBuilder =
  *     RegionAutoscalersStubSettings.newBuilder();
  * regionAutoscalersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionAutoscalersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionAutoscalersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionAutoscalersStubSettings regionAutoscalersSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionBackendServicesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionBackendServicesStubSettings.java
index 078d4a731..4b4fb97c5 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionBackendServicesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionBackendServicesStubSettings.java
@@ -82,17 +82,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionBackendServicesStubSettings.Builder regionBackendServicesSettingsBuilder =
  *     RegionBackendServicesStubSettings.newBuilder();
  * regionBackendServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionBackendServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionBackendServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionBackendServicesStubSettings regionBackendServicesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionCommitmentsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionCommitmentsStubSettings.java
index 1df024416..875ad3177 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionCommitmentsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionCommitmentsStubSettings.java
@@ -84,17 +84,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionCommitmentsStubSettings.Builder regionCommitmentsSettingsBuilder =
  *     RegionCommitmentsStubSettings.newBuilder();
  * regionCommitmentsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionCommitmentsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionCommitmentsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionCommitmentsStubSettings regionCommitmentsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDiskTypesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDiskTypesStubSettings.java
index af87cd8d6..02d54746d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDiskTypesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDiskTypesStubSettings.java
@@ -71,17 +71,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDiskTypesStubSettings.Builder regionDiskTypesSettingsBuilder =
  *     RegionDiskTypesStubSettings.newBuilder();
  * regionDiskTypesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionDiskTypesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionDiskTypesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionDiskTypesStubSettings regionDiskTypesSettings = regionDiskTypesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDisksStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDisksStubSettings.java
index 66072246c..3b869e780 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDisksStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionDisksStubSettings.java
@@ -88,17 +88,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionDisksStubSettings.Builder regionDisksSettingsBuilder =
  *     RegionDisksStubSettings.newBuilder();
  * regionDisksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionDisksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionDisksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionDisksStubSettings regionDisksSettings = regionDisksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthCheckServicesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthCheckServicesStubSettings.java
index 9cb2cde6c..fe56c9280 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthCheckServicesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthCheckServicesStubSettings.java
@@ -79,17 +79,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthCheckServicesStubSettings.Builder regionHealthCheckServicesSettingsBuilder =
  *     RegionHealthCheckServicesStubSettings.newBuilder();
  * regionHealthCheckServicesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionHealthCheckServicesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionHealthCheckServicesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionHealthCheckServicesStubSettings regionHealthCheckServicesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthChecksStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthChecksStubSettings.java
index d1bf59986..66f72e073 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthChecksStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionHealthChecksStubSettings.java
@@ -80,17 +80,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionHealthChecksStubSettings.Builder regionHealthChecksSettingsBuilder =
  *     RegionHealthChecksStubSettings.newBuilder();
  * regionHealthChecksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionHealthChecksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionHealthChecksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionHealthChecksStubSettings regionHealthChecksSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupManagersStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupManagersStubSettings.java
index 913bbe8dd..7e0552e2d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupManagersStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupManagersStubSettings.java
@@ -102,17 +102,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupManagersStubSettings.Builder regionInstanceGroupManagersSettingsBuilder =
  *     RegionInstanceGroupManagersStubSettings.newBuilder();
  * regionInstanceGroupManagersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionInstanceGroupManagersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionInstanceGroupManagersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionInstanceGroupManagersStubSettings regionInstanceGroupManagersSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupsStubSettings.java
index af9aab0ca..3e625ba88 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstanceGroupsStubSettings.java
@@ -81,17 +81,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstanceGroupsStubSettings.Builder regionInstanceGroupsSettingsBuilder =
  *     RegionInstanceGroupsStubSettings.newBuilder();
  * regionInstanceGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionInstanceGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionInstanceGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionInstanceGroupsStubSettings regionInstanceGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstancesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstancesStubSettings.java
index cd9ca9338..c71a1a5d4 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstancesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionInstancesStubSettings.java
@@ -64,17 +64,17 @@
  * <p>For example, to set the total timeout of bulkInsert to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionInstancesStubSettings.Builder regionInstancesSettingsBuilder =
  *     RegionInstancesStubSettings.newBuilder();
  * regionInstancesSettingsBuilder
  *     .bulkInsertSettings()
  *     .setRetrySettings(
- *         regionInstancesSettingsBuilder
- *             .bulkInsertSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionInstancesSettingsBuilder.bulkInsertSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionInstancesStubSettings regionInstancesSettings = regionInstancesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkEndpointGroupsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkEndpointGroupsStubSettings.java
index ec9e6bce5..47cc0fa9b 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkEndpointGroupsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkEndpointGroupsStubSettings.java
@@ -78,17 +78,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkEndpointGroupsStubSettings.Builder regionNetworkEndpointGroupsSettingsBuilder =
  *     RegionNetworkEndpointGroupsStubSettings.newBuilder();
  * regionNetworkEndpointGroupsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionNetworkEndpointGroupsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionNetworkEndpointGroupsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionNetworkEndpointGroupsStubSettings regionNetworkEndpointGroupsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkFirewallPoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkFirewallPoliciesStubSettings.java
index 0c487adf7..c57f77af3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkFirewallPoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNetworkFirewallPoliciesStubSettings.java
@@ -96,8 +96,11 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNetworkFirewallPoliciesStubSettings.Builder regionNetworkFirewallPoliciesSettingsBuilder =
  *     RegionNetworkFirewallPoliciesStubSettings.newBuilder();
  * regionNetworkFirewallPoliciesSettingsBuilder
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNotificationEndpointsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNotificationEndpointsStubSettings.java
index 265de3ce9..2f76fd21a 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNotificationEndpointsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionNotificationEndpointsStubSettings.java
@@ -78,17 +78,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionNotificationEndpointsStubSettings.Builder regionNotificationEndpointsSettingsBuilder =
  *     RegionNotificationEndpointsStubSettings.newBuilder();
  * regionNotificationEndpointsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionNotificationEndpointsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionNotificationEndpointsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionNotificationEndpointsStubSettings regionNotificationEndpointsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionOperationsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionOperationsStubSettings.java
index 87f022a23..7e584bbd3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionOperationsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionOperationsStubSettings.java
@@ -74,17 +74,17 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionOperationsStubSettings.Builder regionOperationsSettingsBuilder =
  *     RegionOperationsStubSettings.newBuilder();
  * regionOperationsSettingsBuilder
  *     .deleteSettings()
  *     .setRetrySettings(
- *         regionOperationsSettingsBuilder
- *             .deleteSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionOperationsSettingsBuilder.deleteSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionOperationsStubSettings regionOperationsSettings = regionOperationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSecurityPoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSecurityPoliciesStubSettings.java
index 7f7fe8285..5674d9335 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSecurityPoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSecurityPoliciesStubSettings.java
@@ -79,17 +79,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSecurityPoliciesStubSettings.Builder regionSecurityPoliciesSettingsBuilder =
  *     RegionSecurityPoliciesStubSettings.newBuilder();
  * regionSecurityPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionSecurityPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionSecurityPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionSecurityPoliciesStubSettings regionSecurityPoliciesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSslCertificatesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSslCertificatesStubSettings.java
index d60476ecc..4e160ce64 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSslCertificatesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionSslCertificatesStubSettings.java
@@ -78,17 +78,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionSslCertificatesStubSettings.Builder regionSslCertificatesSettingsBuilder =
  *     RegionSslCertificatesStubSettings.newBuilder();
  * regionSslCertificatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionSslCertificatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionSslCertificatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionSslCertificatesStubSettings regionSslCertificatesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpProxiesStubSettings.java
index b4ed9ce7b..f85d14a26 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpProxiesStubSettings.java
@@ -79,17 +79,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpProxiesStubSettings.Builder regionTargetHttpProxiesSettingsBuilder =
  *     RegionTargetHttpProxiesStubSettings.newBuilder();
  * regionTargetHttpProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionTargetHttpProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionTargetHttpProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionTargetHttpProxiesStubSettings regionTargetHttpProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpsProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpsProxiesStubSettings.java
index 9114186d2..26536ccdc 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpsProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionTargetHttpsProxiesStubSettings.java
@@ -81,17 +81,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionTargetHttpsProxiesStubSettings.Builder regionTargetHttpsProxiesSettingsBuilder =
  *     RegionTargetHttpsProxiesStubSettings.newBuilder();
  * regionTargetHttpsProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionTargetHttpsProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionTargetHttpsProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionTargetHttpsProxiesStubSettings regionTargetHttpsProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionUrlMapsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionUrlMapsStubSettings.java
index 504af2c5b..603654925 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionUrlMapsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionUrlMapsStubSettings.java
@@ -82,17 +82,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionUrlMapsStubSettings.Builder regionUrlMapsSettingsBuilder =
  *     RegionUrlMapsStubSettings.newBuilder();
  * regionUrlMapsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionUrlMapsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionUrlMapsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionUrlMapsStubSettings regionUrlMapsSettings = regionUrlMapsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionsStubSettings.java
index c85bf84a3..f7047c6c7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RegionsStubSettings.java
@@ -71,16 +71,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RegionsStubSettings.Builder regionsSettingsBuilder = RegionsStubSettings.newBuilder();
  * regionsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         regionsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         regionsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RegionsStubSettings regionsSettings = regionsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ReservationsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ReservationsStubSettings.java
index cecc8e296..0caa84d3e 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ReservationsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ReservationsStubSettings.java
@@ -91,17 +91,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ReservationsStubSettings.Builder reservationsSettingsBuilder =
  *     ReservationsStubSettings.newBuilder();
  * reservationsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         reservationsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         reservationsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ReservationsStubSettings reservationsSettings = reservationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ResourcePoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ResourcePoliciesStubSettings.java
index 58cc5f961..a11d6644c 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ResourcePoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ResourcePoliciesStubSettings.java
@@ -89,17 +89,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ResourcePoliciesStubSettings.Builder resourcePoliciesSettingsBuilder =
  *     ResourcePoliciesStubSettings.newBuilder();
  * resourcePoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         resourcePoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         resourcePoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ResourcePoliciesStubSettings resourcePoliciesSettings = resourcePoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutersStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutersStubSettings.java
index 428a27202..80070e408 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutersStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutersStubSettings.java
@@ -94,16 +94,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutersStubSettings.Builder routersSettingsBuilder = RoutersStubSettings.newBuilder();
  * routersSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         routersSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         routersSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RoutersStubSettings routersSettings = routersSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutesStubSettings.java
index 11b7ec138..7eaff3d79 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/RoutesStubSettings.java
@@ -78,16 +78,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * RoutesStubSettings.Builder routesSettingsBuilder = RoutesStubSettings.newBuilder();
  * routesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         routesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         routesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * RoutesStubSettings routesSettings = routesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SecurityPoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SecurityPoliciesStubSettings.java
index e23cba90c..2329d79db 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SecurityPoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SecurityPoliciesStubSettings.java
@@ -92,17 +92,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SecurityPoliciesStubSettings.Builder securityPoliciesSettingsBuilder =
  *     SecurityPoliciesStubSettings.newBuilder();
  * securityPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         securityPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         securityPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SecurityPoliciesStubSettings securityPoliciesSettings = securityPoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ServiceAttachmentsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ServiceAttachmentsStubSettings.java
index bc305d81a..d3a250bd3 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ServiceAttachmentsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ServiceAttachmentsStubSettings.java
@@ -90,17 +90,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ServiceAttachmentsStubSettings.Builder serviceAttachmentsSettingsBuilder =
  *     ServiceAttachmentsStubSettings.newBuilder();
  * serviceAttachmentsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         serviceAttachmentsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         serviceAttachmentsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ServiceAttachmentsStubSettings serviceAttachmentsSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SnapshotsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SnapshotsStubSettings.java
index a8f0219a7..6e72c8949 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SnapshotsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SnapshotsStubSettings.java
@@ -84,16 +84,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SnapshotsStubSettings.Builder snapshotsSettingsBuilder = SnapshotsStubSettings.newBuilder();
  * snapshotsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         snapshotsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         snapshotsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SnapshotsStubSettings snapshotsSettings = snapshotsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslCertificatesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslCertificatesStubSettings.java
index 72f7310a0..752929512 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslCertificatesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslCertificatesStubSettings.java
@@ -84,17 +84,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslCertificatesStubSettings.Builder sslCertificatesSettingsBuilder =
  *     SslCertificatesStubSettings.newBuilder();
  * sslCertificatesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         sslCertificatesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         sslCertificatesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SslCertificatesStubSettings sslCertificatesSettings = sslCertificatesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslPoliciesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslPoliciesStubSettings.java
index f95f0c6bb..fabadd888 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslPoliciesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SslPoliciesStubSettings.java
@@ -81,17 +81,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SslPoliciesStubSettings.Builder sslPoliciesSettingsBuilder =
  *     SslPoliciesStubSettings.newBuilder();
  * sslPoliciesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         sslPoliciesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         sslPoliciesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SslPoliciesStubSettings sslPoliciesSettings = sslPoliciesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SubnetworksStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SubnetworksStubSettings.java
index 304885bdc..0a3919104 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SubnetworksStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/SubnetworksStubSettings.java
@@ -96,17 +96,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * SubnetworksStubSettings.Builder subnetworksSettingsBuilder =
  *     SubnetworksStubSettings.newBuilder();
  * subnetworksSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         subnetworksSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         subnetworksSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * SubnetworksStubSettings subnetworksSettings = subnetworksSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetGrpcProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetGrpcProxiesStubSettings.java
index d38860f2b..450cce50d 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetGrpcProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetGrpcProxiesStubSettings.java
@@ -79,17 +79,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetGrpcProxiesStubSettings.Builder targetGrpcProxiesSettingsBuilder =
  *     TargetGrpcProxiesStubSettings.newBuilder();
  * targetGrpcProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetGrpcProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetGrpcProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetGrpcProxiesStubSettings targetGrpcProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpProxiesStubSettings.java
index 02c1ea4ed..591587220 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpProxiesStubSettings.java
@@ -86,17 +86,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpProxiesStubSettings.Builder targetHttpProxiesSettingsBuilder =
  *     TargetHttpProxiesStubSettings.newBuilder();
  * targetHttpProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetHttpProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetHttpProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetHttpProxiesStubSettings targetHttpProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpsProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpsProxiesStubSettings.java
index 46e083da4..00c4d0969 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpsProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetHttpsProxiesStubSettings.java
@@ -90,17 +90,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetHttpsProxiesStubSettings.Builder targetHttpsProxiesSettingsBuilder =
  *     TargetHttpsProxiesStubSettings.newBuilder();
  * targetHttpsProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetHttpsProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetHttpsProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetHttpsProxiesStubSettings targetHttpsProxiesSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetInstancesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetInstancesStubSettings.java
index 403c91170..4e499ba22 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetInstancesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetInstancesStubSettings.java
@@ -84,17 +84,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetInstancesStubSettings.Builder targetInstancesSettingsBuilder =
  *     TargetInstancesStubSettings.newBuilder();
  * targetInstancesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetInstancesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetInstancesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetInstancesStubSettings targetInstancesSettings = targetInstancesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetPoolsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetPoolsStubSettings.java
index 6e4a5b209..562c55f21 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetPoolsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetPoolsStubSettings.java
@@ -91,17 +91,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetPoolsStubSettings.Builder targetPoolsSettingsBuilder =
  *     TargetPoolsStubSettings.newBuilder();
  * targetPoolsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetPoolsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetPoolsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetPoolsStubSettings targetPoolsSettings = targetPoolsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetSslProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetSslProxiesStubSettings.java
index 3c54e88c4..b14a662ea 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetSslProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetSslProxiesStubSettings.java
@@ -83,17 +83,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetSslProxiesStubSettings.Builder targetSslProxiesSettingsBuilder =
  *     TargetSslProxiesStubSettings.newBuilder();
  * targetSslProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetSslProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetSslProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetSslProxiesStubSettings targetSslProxiesSettings = targetSslProxiesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetTcpProxiesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetTcpProxiesStubSettings.java
index 8132959f2..f61024444 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetTcpProxiesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetTcpProxiesStubSettings.java
@@ -80,17 +80,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetTcpProxiesStubSettings.Builder targetTcpProxiesSettingsBuilder =
  *     TargetTcpProxiesStubSettings.newBuilder();
  * targetTcpProxiesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetTcpProxiesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetTcpProxiesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetTcpProxiesStubSettings targetTcpProxiesSettings = targetTcpProxiesSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetVpnGatewaysStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetVpnGatewaysStubSettings.java
index fc45d0a97..00a907bc8 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetVpnGatewaysStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/TargetVpnGatewaysStubSettings.java
@@ -84,17 +84,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * TargetVpnGatewaysStubSettings.Builder targetVpnGatewaysSettingsBuilder =
  *     TargetVpnGatewaysStubSettings.newBuilder();
  * targetVpnGatewaysSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         targetVpnGatewaysSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         targetVpnGatewaysSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * TargetVpnGatewaysStubSettings targetVpnGatewaysSettings =
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/UrlMapsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/UrlMapsStubSettings.java
index bb522fba1..c263e13ab 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/UrlMapsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/UrlMapsStubSettings.java
@@ -89,16 +89,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * UrlMapsStubSettings.Builder urlMapsSettingsBuilder = UrlMapsStubSettings.newBuilder();
  * urlMapsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         urlMapsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         urlMapsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * UrlMapsStubSettings urlMapsSettings = urlMapsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnGatewaysStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnGatewaysStubSettings.java
index 1a585c454..47158bbb7 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnGatewaysStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnGatewaysStubSettings.java
@@ -89,17 +89,17 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnGatewaysStubSettings.Builder vpnGatewaysSettingsBuilder =
  *     VpnGatewaysStubSettings.newBuilder();
  * vpnGatewaysSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         vpnGatewaysSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         vpnGatewaysSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * VpnGatewaysStubSettings vpnGatewaysSettings = vpnGatewaysSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnTunnelsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnTunnelsStubSettings.java
index d2e5e8115..cae77c038 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnTunnelsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/VpnTunnelsStubSettings.java
@@ -84,16 +84,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * VpnTunnelsStubSettings.Builder vpnTunnelsSettingsBuilder = VpnTunnelsStubSettings.newBuilder();
  * vpnTunnelsSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         vpnTunnelsSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         vpnTunnelsSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * VpnTunnelsStubSettings vpnTunnelsSettings = vpnTunnelsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZoneOperationsStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZoneOperationsStubSettings.java
index c89fe1490..b214b43c1 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZoneOperationsStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZoneOperationsStubSettings.java
@@ -74,17 +74,17 @@
  * <p>For example, to set the total timeout of delete to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZoneOperationsStubSettings.Builder zoneOperationsSettingsBuilder =
  *     ZoneOperationsStubSettings.newBuilder();
  * zoneOperationsSettingsBuilder
  *     .deleteSettings()
  *     .setRetrySettings(
- *         zoneOperationsSettingsBuilder
- *             .deleteSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         zoneOperationsSettingsBuilder.deleteSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ZoneOperationsStubSettings zoneOperationsSettings = zoneOperationsSettingsBuilder.build();
diff --git a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZonesStubSettings.java b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZonesStubSettings.java
index 79fb025ee..802801636 100644
--- a/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZonesStubSettings.java
+++ b/google-cloud-compute/src/main/java/com/google/cloud/compute/v1/stub/ZonesStubSettings.java
@@ -71,16 +71,16 @@
  * <p>For example, to set the total timeout of get to 30 seconds:
  *
  * <pre>{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ZonesStubSettings.Builder zonesSettingsBuilder = ZonesStubSettings.newBuilder();
  * zonesSettingsBuilder
  *     .getSettings()
  *     .setRetrySettings(
- *         zonesSettingsBuilder
- *             .getSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         zonesSettingsBuilder.getSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ZonesStubSettings zonesSettings = zonesSettingsBuilder.build();