diff --git a/gapic/samplegen/samplegen.py b/gapic/samplegen/samplegen.py
index 876f0b9d0a..b19ce4fa87 100644
--- a/gapic/samplegen/samplegen.py
+++ b/gapic/samplegen/samplegen.py
@@ -202,7 +202,7 @@ def build(
                     f"Resource {resource_typestr} has no pattern with params: {attr_name_str}"
                 )
 
-            return cls(base=base, body=attrs, single=None, pattern=pattern)
+            return cls(base=base, body=attrs, single=None, pattern=pattern,)
 
 
 @dataclasses.dataclass
@@ -293,17 +293,22 @@ def preprocess_sample(sample, api_schema: api.API, rpc: wrappers.Method):
         sample["module_name"] = api_schema.naming.versioned_module_name
         sample["module_namespace"] = api_schema.naming.module_namespace
 
+        service = api_schema.services[sample["service"]]
+
         # Assume the gRPC transport if the transport is not specified
-        sample.setdefault("transport", api.TRANSPORT_GRPC)
+        transport = sample.setdefault("transport", api.TRANSPORT_GRPC)
 
-        if sample["transport"] == api.TRANSPORT_GRPC_ASYNC:
-            sample["client_name"] = api_schema.services[sample["service"]
-                                                        ].async_client_name
-        else:
-            sample["client_name"] = api_schema.services[sample["service"]].client_name
+        is_async = transport == api.TRANSPORT_GRPC_ASYNC
+        sample["client_name"] = service.async_client_name if is_async else service.client_name
 
-        # the type of the request object passed to the rpc e.g, `ListRequest`
-        sample["request_type"] = rpc.input.ident.name
+        # the MessageType of the request object passed to the rpc e.g, `ListRequest`
+        sample["request_type"] = rpc.input
+
+        # If no request was specified in the config
+        # Add reasonable default values as placeholders
+        if "request" not in sample:
+            sample["request"] = generate_request_object(
+                api_schema, service, rpc.input)
 
         # If no response was specified in the config
         # Add reasonable defaults depending on the type of the sample
@@ -940,6 +945,58 @@ def parse_handwritten_specs(sample_configs: Sequence[str]) -> Generator[Dict[str
                         yield spec
 
 
+def generate_request_object(api_schema: api.API, service: wrappers.Service, message: wrappers.MessageType, field_name_prefix: str = ""):
+    """Generate dummy input for a given message.
+
+    Args:
+        api_schema (api.API): The schema that defines the API.
+        service (wrappers.Service): The service object the message belongs to.
+        message (wrappers.MessageType): The message to generate a request object for.
+        field_name_prefix (str): A prefix to attach to the field name in the request.
+
+    Returns:
+        List[Dict[str, Any]]: A list of dicts that can be turned into TransformedRequests.
+    """
+    request: List[Dict[str, Any]] = []
+
+    request_fields: List[wrappers.Field] = []
+
+    # Choose the first option for each oneof
+    selected_oneofs: List[wrappers.Field] = [oneof_fields[0]
+        for oneof_fields in message.oneof_fields().values()]
+    request_fields = selected_oneofs + message.required_fields
+
+    for field in request_fields:
+        # TransformedRequest expects nested fields to be referenced like
+        # `destination.input_config.name`
+        field_name = ".".join([field_name_prefix, field.name]).lstrip('.')
+
+        # TODO(busunkim): Properly handle map fields
+        if field.is_primitive:
+            placeholder_value = field.mock_value_original_type
+            # If this field identifies a resource use the resource path
+            if service.resource_messages_dict.get(field.resource_reference):
+                placeholder_value = service.resource_messages_dict[
+                    field.resource_reference].resource_path
+            request.append({"field": field_name, "value": placeholder_value})
+        elif field.enum:
+            # Choose the last enum value in the list since index 0 is often "unspecified"
+            request.append(
+                {"field": field_name, "value": field.enum.values[-1].name})
+        else:
+            # This is a message type, recurse
+            # TODO(busunkim):  Some real world APIs have
+            # request objects are recursive.
+            # Reference `Field.mock_value` to ensure
+            # this always terminates.
+            request += generate_request_object(
+                api_schema, service, field.type,
+                field_name_prefix=field_name,
+            )
+
+    return request
+
+
 def generate_sample_specs(api_schema: api.API, *, opts) -> Generator[Dict[str, Any], None, None]:
     """Given an API, generate basic sample specs for each method.
 
@@ -964,8 +1021,7 @@ def generate_sample_specs(api_schema: api.API, *, opts) -> Generator[Dict[str, A
                     "sample_type": "standalone",
                     "rpc": rpc_name,
                     "transport": transport,
-                    "request": [],
-                    # response is populated in `preprocess_sample`
+                    # `request` and `response` is populated in `preprocess_sample`
                     "service": f"{api_schema.naming.proto_package}.{service_name}",
                     "region_tag": region_tag,
                     "description": f"Snippet for {utils.to_snake_case(rpc_name)}"
diff --git a/gapic/schema/wrappers.py b/gapic/schema/wrappers.py
index 0e59458921..8c2313f8a7 100644
--- a/gapic/schema/wrappers.py
+++ b/gapic/schema/wrappers.py
@@ -31,7 +31,7 @@
 import dataclasses
 import re
 from itertools import chain
-from typing import (cast, Dict, FrozenSet, Iterable, List, Mapping,
+from typing import (Any, cast, Dict, FrozenSet, Iterable, List, Mapping,
                     ClassVar, Optional, Sequence, Set, Tuple, Union)
 from google.api import annotations_pb2      # type: ignore
 from google.api import client_pb2
@@ -89,6 +89,17 @@ def map(self) -> bool:
         """Return True if this field is a map, False otherwise."""
         return bool(self.repeated and self.message and self.message.map)
 
+    @utils.cached_property
+    def mock_value_original_type(self) -> Union[bool, str, bytes, int, float, List[Any], None]:
+        answer = self.primitive_mock() or None
+
+        # If this is a repeated field, then the mock answer should
+        # be a list.
+        if self.repeated:
+            answer = [answer]
+
+        return answer
+
     @utils.cached_property
     def mock_value(self) -> str:
         visited_fields: Set["Field"] = set()
@@ -100,25 +111,13 @@ def mock_value(self) -> str:
 
         return answer
 
-    def inner_mock(self, stack, visited_fields):
+    def inner_mock(self, stack, visited_fields) -> str:
         """Return a repr of a valid, usually truthy mock value."""
         # For primitives, send a truthy value computed from the
         # field name.
         answer = 'None'
         if isinstance(self.type, PrimitiveType):
-            if self.type.python_type == bool:
-                answer = 'True'
-            elif self.type.python_type == str:
-                answer = f"'{self.name}_value'"
-            elif self.type.python_type == bytes:
-                answer = f"b'{self.name}_blob'"
-            elif self.type.python_type == int:
-                answer = f'{sum([ord(i) for i in self.name])}'
-            elif self.type.python_type == float:
-                answer = f'0.{sum([ord(i) for i in self.name])}'
-            else:  # Impossible; skip coverage checks.
-                raise TypeError('Unrecognized PrimitiveType. This should '
-                                'never happen; please file an issue.')
+            answer = self.primitive_mock_as_str()
 
         # If this is an enum, select the first truthy value (or the zero
         # value if nothing else exists).
@@ -158,6 +157,45 @@ def inner_mock(self, stack, visited_fields):
         # Done; return the mock value.
         return answer
 
+    def primitive_mock(self) -> Union[bool, str, bytes, int, float, List[Any], None]:
+        """Generate a valid mock for a primitive type. This function
+        returns the original (Python) type.
+        """
+        answer: Union[bool, str, bytes, int, float, List[Any], None] = None
+
+        if not isinstance(self.type, PrimitiveType):
+            raise TypeError(f"'inner_mock_as_original_type' can only be used for"
+                f"PrimitiveType, but type is {self.type}")
+
+        else:
+            if self.type.python_type == bool:
+                answer = True
+            elif self.type.python_type == str:
+                answer = f"{self.name}_value"
+            elif self.type.python_type == bytes:
+                answer = bytes(f"{self.name}_blob", encoding="utf-8")
+            elif self.type.python_type == int:
+                answer = sum([ord(i) for i in self.name])
+            elif self.type.python_type == float:
+                name_sum = sum([ord(i) for i in self.name])
+                answer = name_sum * pow(10, -1 * len(str(name_sum)))
+            else:  # Impossible; skip coverage checks.
+                raise TypeError('Unrecognized PrimitiveType. This should '
+                                'never happen; please file an issue.')
+
+        return answer
+
+    def primitive_mock_as_str(self) -> str:
+        """Like primitive mock, but return the mock as a string."""
+        answer = self.primitive_mock()
+
+        if isinstance(answer, str):
+            answer = f"'{answer}'"
+        else:
+            answer = str(answer)
+
+        return answer
+
     @property
     def proto_type(self) -> str:
         """Return the proto type constant to be used in templates."""
@@ -186,6 +224,17 @@ def required(self) -> bool:
         return (field_behavior_pb2.FieldBehavior.Value('REQUIRED') in
                 self.options.Extensions[field_behavior_pb2.field_behavior])
 
+    @property
+    def resource_reference(self) -> Optional[str]:
+        """Return a resource reference type if it exists.
+
+        This is only applicable for string fields.
+        Example: "translate.googleapis.com/Glossary"
+        """
+        return (self.options.Extensions[resource_pb2.resource_reference].type
+            or self.options.Extensions[resource_pb2.resource_reference].child_type
+            or None)
+
     @utils.cached_property
     def type(self) -> Union['MessageType', 'EnumType', 'PrimitiveType']:
         """Return the type of this field."""
@@ -286,6 +335,13 @@ def oneof_fields(self, include_optional=False):
 
         return oneof_fields
 
+    @utils.cached_property
+    def required_fields(self) -> Sequence['Field']:
+        required_fields = [
+            field for field in self.fields.values() if field.required]
+
+        return required_fields
+
     @utils.cached_property
     def field_types(self) -> Sequence[Union['MessageType', 'EnumType']]:
         answer = tuple(
@@ -353,6 +409,11 @@ def resource_type(self) -> Optional[str]:
         resource = self.options.Extensions[resource_pb2.resource]
         return resource.type[resource.type.find('/') + 1:] if resource else None
 
+    @property
+    def resource_type_full_path(self) -> Optional[str]:
+        resource = self.options.Extensions[resource_pb2.resource]
+        return resource.type if resource else None
+
     @property
     def resource_path_args(self) -> Sequence[str]:
         return self.PATH_ARG_RE.findall(self.resource_path or '')
@@ -1199,6 +1260,27 @@ def gen_indirect_resources_used(message):
             )
         )
 
+    @utils.cached_property
+    def resource_messages_dict(self) -> Dict[str, MessageType]:
+        """Returns a dict from resource reference to
+        the message type. This *includes* the common resource messages.
+
+        Returns:
+            Dict[str, MessageType]: A mapping from resource path
+                string to the corresponding MessageType.
+                `{"locations.googleapis.com/Location": MessageType(...)}`
+        """
+        service_resource_messages = {
+            r.resource_type_full_path: r for r in self.resource_messages}
+
+        # Add common resources
+        service_resource_messages.update(
+            (resource_path, resource.message_type)
+            for resource_path, resource in self.common_resources.items()
+        )
+
+        return service_resource_messages
+
     @utils.cached_property
     def any_client_streaming(self) -> bool:
         return any(m.client_streaming for m in self.methods.values())
diff --git a/gapic/templates/examples/feature_fragments.j2 b/gapic/templates/examples/feature_fragments.j2
index 502d68fa60..eda14df7e4 100644
--- a/gapic/templates/examples/feature_fragments.j2
+++ b/gapic/templates/examples/feature_fragments.j2
@@ -126,18 +126,19 @@ with open({{ print_string_formatting(statement["filename"])|trim }}, "wb") as f:
 {% macro render_request_attr(base_name, attr) %}
 {# Note: python code will have manipulated the value #}
 {# to be the correct enum from the right module, if necessary. #}
-{# Python is also responsible for verifying that each input parameter is unique,#}
+{# Python is also responsible for verifying that each input parameter is unique, #}
 {# no parameter is a reserved keyword #}
 {% if attr.input_parameter %}
+
 # {{ attr.input_parameter }} = {{ attr.value }}
 {% if attr.value_is_file %}
 with open({{ attr.input_parameter }}, "rb") as f:
-    {{ base_name }}["{{ attr.field }}"] = f.read()
+    {{ base_name }}.{{ attr.field }} = f.read()
 {% else %}
-{{ base_name }}["{{ attr.field }}"] = {{ attr.input_parameter }}
+{{ base_name }}.{{ attr.field }} = {{ attr.input_parameter }}
 {% endif %}
 {% else %}
-{{ base_name }}["{{ attr.field }}"] = {{ attr.value }}
+{{ base_name }}.{{ attr.field }} = {{ attr.value }}
 {% endif %}
 {% endmacro %}
 
@@ -159,16 +160,17 @@ client = {{ module_name }}.{{ client_name }}()
 {{ parameter_block.base }} = "{{parameter_block.pattern }}".format({{ formals|join(", ") }})
 {% endwith %}
 {% else %}{# End resource name construction #}
-{{ parameter_block.base }} = {}
+{{ parameter_block.base }} = {{ module_name }}.{{ request_type.get_field(parameter_block.base).type.name }}()
 {% for attr in parameter_block.body %}
-{{ render_request_attr(parameter_block.base, attr) }}
+{{ render_request_attr(parameter_block.base, attr) -}}
 {% endfor %}
+
 {% endif %}
 {% endfor %}
 {% if not full_request.flattenable %}
-request = {{ module_name }}.{{ request_type }}(
+request = {{ module_name }}.{{ request_type.ident.name }}(
 {% for parameter in full_request.request_list %}
-    {{ parameter.base }}={{ parameter.base if parameter.body else parameter.single }},
+    {{ parameter.base }}={{ parameter.base if parameter.body else parameter.single.value }},
 {% endfor %}
 )
 {% endif %}
diff --git a/noxfile.py b/noxfile.py
index 5296514a68..e270f0423e 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -50,7 +50,7 @@ def unit(session):
                 "--cov-report=term",
                 "--cov-fail-under=100",
                 path.join("tests", "unit"),
-            ]
+                            ]
         ),
     )
 
@@ -308,7 +308,7 @@ def snippetgen(session):
 
     session.run(
         "py.test",
-        "--quiet",
+        "-vv",
         "tests/snippetgen"
     )
 
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_async.py
index e5c7daddc0..633f8b0467 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_async.py
@@ -34,7 +34,11 @@ async def sample_analyze_iam_policy():
     client = asset_v1.AssetServiceAsyncClient()
 
     # Initialize request argument(s)
+    analysis_query = asset_v1.IamPolicyAnalysisQuery()
+    analysis_query.scope = "scope_value"
+
     request = asset_v1.AnalyzeIamPolicyRequest(
+        analysis_query=analysis_query,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_async.py
index 81abec2403..f3a40e1568 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_async.py
@@ -34,7 +34,15 @@ async def sample_analyze_iam_policy_longrunning():
     client = asset_v1.AssetServiceAsyncClient()
 
     # Initialize request argument(s)
+    analysis_query = asset_v1.IamPolicyAnalysisQuery()
+    analysis_query.scope = "scope_value"
+
+    output_config = asset_v1.IamPolicyAnalysisOutputConfig()
+    output_config.gcs_destination.uri = "uri_value"
+
     request = asset_v1.AnalyzeIamPolicyLongrunningRequest(
+        analysis_query=analysis_query,
+        output_config=output_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_sync.py
index c59ff3936a..6bfec27de9 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_longrunning_sync.py
@@ -34,7 +34,15 @@ def sample_analyze_iam_policy_longrunning():
     client = asset_v1.AssetServiceClient()
 
     # Initialize request argument(s)
+    analysis_query = asset_v1.IamPolicyAnalysisQuery()
+    analysis_query.scope = "scope_value"
+
+    output_config = asset_v1.IamPolicyAnalysisOutputConfig()
+    output_config.gcs_destination.uri = "uri_value"
+
     request = asset_v1.AnalyzeIamPolicyLongrunningRequest(
+        analysis_query=analysis_query,
+        output_config=output_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_sync.py
index 188cc12bca..22017d9960 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_analyze_iam_policy_sync.py
@@ -34,7 +34,11 @@ def sample_analyze_iam_policy():
     client = asset_v1.AssetServiceClient()
 
     # Initialize request argument(s)
+    analysis_query = asset_v1.IamPolicyAnalysisQuery()
+    analysis_query.scope = "scope_value"
+
     request = asset_v1.AnalyzeIamPolicyRequest(
+        analysis_query=analysis_query,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_async.py
index 29da9244a8..f2f051da59 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_async.py
@@ -35,6 +35,7 @@ async def sample_batch_get_assets_history():
 
     # Initialize request argument(s)
     request = asset_v1.BatchGetAssetsHistoryRequest(
+        parent="*",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_sync.py
index 8fd8b83c10..ed2d78e9e6 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_batch_get_assets_history_sync.py
@@ -35,6 +35,7 @@ def sample_batch_get_assets_history():
 
     # Initialize request argument(s)
     request = asset_v1.BatchGetAssetsHistoryRequest(
+        parent="*",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_async.py
index e6a4c3b8dd..eb42919714 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_async.py
@@ -34,7 +34,13 @@ async def sample_create_feed():
     client = asset_v1.AssetServiceAsyncClient()
 
     # Initialize request argument(s)
+    feed = asset_v1.Feed()
+    feed.name = "name_value"
+
     request = asset_v1.CreateFeedRequest(
+        parent="parent_value",
+        feed_id="feed_id_value",
+        feed=feed,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_sync.py
index c41f2d9289..c5a31c080d 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_create_feed_sync.py
@@ -34,7 +34,13 @@ def sample_create_feed():
     client = asset_v1.AssetServiceClient()
 
     # Initialize request argument(s)
+    feed = asset_v1.Feed()
+    feed.name = "name_value"
+
     request = asset_v1.CreateFeedRequest(
+        parent="parent_value",
+        feed_id="feed_id_value",
+        feed=feed,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_async.py
index 8e10aedf8d..793a1d28ac 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_async.py
@@ -35,6 +35,7 @@ async def sample_delete_feed():
 
     # Initialize request argument(s)
     request = asset_v1.DeleteFeedRequest(
+        name="projects/{project}/feeds/{feed}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_sync.py
index 6f28f8c5de..f12a42bd1e 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_delete_feed_sync.py
@@ -35,6 +35,7 @@ def sample_delete_feed():
 
     # Initialize request argument(s)
     request = asset_v1.DeleteFeedRequest(
+        name="projects/{project}/feeds/{feed}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_async.py
index 776264c0dd..00c75331d9 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_async.py
@@ -34,7 +34,12 @@ async def sample_export_assets():
     client = asset_v1.AssetServiceAsyncClient()
 
     # Initialize request argument(s)
+    output_config = asset_v1.OutputConfig()
+    output_config.gcs_destination.uri = "uri_value"
+
     request = asset_v1.ExportAssetsRequest(
+        parent="*",
+        output_config=output_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_sync.py
index e274800452..e4548eed7d 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_export_assets_sync.py
@@ -34,7 +34,12 @@ def sample_export_assets():
     client = asset_v1.AssetServiceClient()
 
     # Initialize request argument(s)
+    output_config = asset_v1.OutputConfig()
+    output_config.gcs_destination.uri = "uri_value"
+
     request = asset_v1.ExportAssetsRequest(
+        parent="*",
+        output_config=output_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_async.py
index 3c10ab1e18..c4078151b7 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_async.py
@@ -35,6 +35,7 @@ async def sample_get_feed():
 
     # Initialize request argument(s)
     request = asset_v1.GetFeedRequest(
+        name="projects/{project}/feeds/{feed}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_sync.py
index 63dbf0c90c..cb53327cce 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_get_feed_sync.py
@@ -35,6 +35,7 @@ def sample_get_feed():
 
     # Initialize request argument(s)
     request = asset_v1.GetFeedRequest(
+        name="projects/{project}/feeds/{feed}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_async.py
index 3f79199a33..ff87a684fe 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_async.py
@@ -35,6 +35,7 @@ async def sample_list_assets():
 
     # Initialize request argument(s)
     request = asset_v1.ListAssetsRequest(
+        parent="*",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_sync.py
index 78dfb91b9e..47ed9d149b 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_assets_sync.py
@@ -35,6 +35,7 @@ def sample_list_assets():
 
     # Initialize request argument(s)
     request = asset_v1.ListAssetsRequest(
+        parent="*",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_async.py
index a15ad4a113..396b767010 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_async.py
@@ -35,6 +35,7 @@ async def sample_list_feeds():
 
     # Initialize request argument(s)
     request = asset_v1.ListFeedsRequest(
+        parent="parent_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_sync.py
index 2ad102f795..816523c64b 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_list_feeds_sync.py
@@ -35,6 +35,7 @@ def sample_list_feeds():
 
     # Initialize request argument(s)
     request = asset_v1.ListFeedsRequest(
+        parent="parent_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_async.py
index b99fc9ac64..58fdd4b9bd 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_async.py
@@ -35,6 +35,7 @@ async def sample_search_all_iam_policies():
 
     # Initialize request argument(s)
     request = asset_v1.SearchAllIamPoliciesRequest(
+        scope="scope_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_sync.py
index e142ae2fcb..dbe303e7fb 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_iam_policies_sync.py
@@ -35,6 +35,7 @@ def sample_search_all_iam_policies():
 
     # Initialize request argument(s)
     request = asset_v1.SearchAllIamPoliciesRequest(
+        scope="scope_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_async.py
index 2fc426361c..f0021cafdc 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_async.py
@@ -35,6 +35,7 @@ async def sample_search_all_resources():
 
     # Initialize request argument(s)
     request = asset_v1.SearchAllResourcesRequest(
+        scope="scope_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_sync.py
index 85d6799a35..ac0b998a06 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_search_all_resources_sync.py
@@ -35,6 +35,7 @@ def sample_search_all_resources():
 
     # Initialize request argument(s)
     request = asset_v1.SearchAllResourcesRequest(
+        scope="scope_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_async.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_async.py
index 2386c5443d..12dd103c4b 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_async.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_async.py
@@ -34,7 +34,11 @@ async def sample_update_feed():
     client = asset_v1.AssetServiceAsyncClient()
 
     # Initialize request argument(s)
+    feed = asset_v1.Feed()
+    feed.name = "name_value"
+
     request = asset_v1.UpdateFeedRequest(
+        feed=feed,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_sync.py b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_sync.py
index 4dc4915cf5..3402c41d22 100644
--- a/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_sync.py
+++ b/tests/integration/goldens/asset/samples/generated_samples/cloudasset_generated_asset_v1_asset_service_update_feed_sync.py
@@ -34,7 +34,11 @@ def sample_update_feed():
     client = asset_v1.AssetServiceClient()
 
     # Initialize request argument(s)
+    feed = asset_v1.Feed()
+    feed.name = "name_value"
+
     request = asset_v1.UpdateFeedRequest(
+        feed=feed,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_async.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_async.py
index de3341a690..b08ce8febc 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_async.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_async.py
@@ -35,6 +35,8 @@ async def sample_generate_access_token():
 
     # Initialize request argument(s)
     request = credentials_v1.GenerateAccessTokenRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        scope=['scope_value'],
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_sync.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_sync.py
index 24e4484bfc..357d62c459 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_sync.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_access_token_sync.py
@@ -35,6 +35,8 @@ def sample_generate_access_token():
 
     # Initialize request argument(s)
     request = credentials_v1.GenerateAccessTokenRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        scope=['scope_value'],
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_async.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_async.py
index 4417fcb6bb..d83bb8d933 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_async.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_async.py
@@ -35,6 +35,8 @@ async def sample_generate_id_token():
 
     # Initialize request argument(s)
     request = credentials_v1.GenerateIdTokenRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        audience="audience_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_sync.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_sync.py
index e23294e559..da92452b3d 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_sync.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_generate_id_token_sync.py
@@ -35,6 +35,8 @@ def sample_generate_id_token():
 
     # Initialize request argument(s)
     request = credentials_v1.GenerateIdTokenRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        audience="audience_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_async.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_async.py
index 3732426ff8..e71f7d3256 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_async.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_async.py
@@ -35,6 +35,8 @@ async def sample_sign_blob():
 
     # Initialize request argument(s)
     request = credentials_v1.SignBlobRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        payload=b'payload_blob',
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_sync.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_sync.py
index 51312014ff..40bd3ae561 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_sync.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_blob_sync.py
@@ -35,6 +35,8 @@ def sample_sign_blob():
 
     # Initialize request argument(s)
     request = credentials_v1.SignBlobRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        payload=b'payload_blob',
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_async.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_async.py
index ce4303485a..8ca3083307 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_async.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_async.py
@@ -35,6 +35,8 @@ async def sample_sign_jwt():
 
     # Initialize request argument(s)
     request = credentials_v1.SignJwtRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        payload="payload_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_sync.py b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_sync.py
index 22b8600917..8dc778a594 100644
--- a/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_sync.py
+++ b/tests/integration/goldens/credentials/samples/generated_samples/iamcredentials_generated_credentials_v1_iam_credentials_sign_jwt_sync.py
@@ -35,6 +35,8 @@ def sample_sign_jwt():
 
     # Initialize request argument(s)
     request = credentials_v1.SignJwtRequest(
+        name="projects/{project}/serviceAccounts/{service_account}",
+        payload="payload_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_async.py
index 4cb0f540ec..9425509149 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_async.py
@@ -35,6 +35,8 @@ async def sample_create_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.CreateBucketRequest(
+        parent="projects/{project}/locations/{location}/buckets/{bucket}",
+        bucket_id="bucket_id_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_sync.py
index 004ee0a486..490adb5296 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_bucket_sync.py
@@ -35,6 +35,8 @@ def sample_create_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.CreateBucketRequest(
+        parent="projects/{project}/locations/{location}/buckets/{bucket}",
+        bucket_id="bucket_id_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_async.py
index 1d0523610f..c41f337710 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_async.py
@@ -34,7 +34,13 @@ async def sample_create_exclusion():
     client = logging_v2.ConfigServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    exclusion = logging_v2.LogExclusion()
+    exclusion.name = "name_value"
+    exclusion.filter = "filter_value"
+
     request = logging_v2.CreateExclusionRequest(
+        parent="projects/{project}/exclusions/{exclusion}",
+        exclusion=exclusion,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_sync.py
index ce102ad991..ac7e04733c 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_exclusion_sync.py
@@ -34,7 +34,13 @@ def sample_create_exclusion():
     client = logging_v2.ConfigServiceV2Client()
 
     # Initialize request argument(s)
+    exclusion = logging_v2.LogExclusion()
+    exclusion.name = "name_value"
+    exclusion.filter = "filter_value"
+
     request = logging_v2.CreateExclusionRequest(
+        parent="projects/{project}/exclusions/{exclusion}",
+        exclusion=exclusion,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_async.py
index 4678b4314f..0affba0c4b 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_async.py
@@ -34,7 +34,13 @@ async def sample_create_sink():
     client = logging_v2.ConfigServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    sink = logging_v2.LogSink()
+    sink.name = "name_value"
+    sink.destination = "destination_value"
+
     request = logging_v2.CreateSinkRequest(
+        parent="projects/{project}/sinks/{sink}",
+        sink=sink,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_sync.py
index f47adb78d3..8bc2129be0 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_sink_sync.py
@@ -34,7 +34,13 @@ def sample_create_sink():
     client = logging_v2.ConfigServiceV2Client()
 
     # Initialize request argument(s)
+    sink = logging_v2.LogSink()
+    sink.name = "name_value"
+    sink.destination = "destination_value"
+
     request = logging_v2.CreateSinkRequest(
+        parent="projects/{project}/sinks/{sink}",
+        sink=sink,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_async.py
index 4fbcdd61a8..a9ced73e6a 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_async.py
@@ -35,6 +35,8 @@ async def sample_create_view():
 
     # Initialize request argument(s)
     request = logging_v2.CreateViewRequest(
+        parent="parent_value",
+        view_id="view_id_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_sync.py
index eefdb75b88..bbb9033c5c 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_create_view_sync.py
@@ -35,6 +35,8 @@ def sample_create_view():
 
     # Initialize request argument(s)
     request = logging_v2.CreateViewRequest(
+        parent="parent_value",
+        view_id="view_id_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_async.py
index 8ca8c4748e..ed6a9173a4 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_async.py
@@ -35,6 +35,7 @@ async def sample_delete_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_sync.py
index 9616621b4e..bf107ae157 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_bucket_sync.py
@@ -35,6 +35,7 @@ def sample_delete_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_async.py
index 0e8df5d06c..73cf51dd59 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_async.py
@@ -35,6 +35,7 @@ async def sample_delete_exclusion():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteExclusionRequest(
+        name="projects/{project}/exclusions/{exclusion}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_sync.py
index 0268e93f28..d1ddf4aecc 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_exclusion_sync.py
@@ -35,6 +35,7 @@ def sample_delete_exclusion():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteExclusionRequest(
+        name="projects/{project}/exclusions/{exclusion}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_async.py
index d1aaaf9ca5..fa0ea94ec5 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_async.py
@@ -35,6 +35,7 @@ async def sample_delete_sink():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteSinkRequest(
+        sink_name="projects/{project}/sinks/{sink}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_sync.py
index 6bdc8b65dc..c432aa6709 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_sink_sync.py
@@ -35,6 +35,7 @@ def sample_delete_sink():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteSinkRequest(
+        sink_name="projects/{project}/sinks/{sink}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_async.py
index e9b1a1255c..ec9ce8c4ad 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_async.py
@@ -35,6 +35,7 @@ async def sample_delete_view():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteViewRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}/views/{view}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_sync.py
index a27f4604d3..f866fb6b3a 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_delete_view_sync.py
@@ -35,6 +35,7 @@ def sample_delete_view():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteViewRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}/views/{view}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_async.py
index bf65579867..43ae4b5102 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_async.py
@@ -35,6 +35,7 @@ async def sample_get_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.GetBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_sync.py
index 80470bf3c4..b729d8de74 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_bucket_sync.py
@@ -35,6 +35,7 @@ def sample_get_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.GetBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_async.py
index ece79ce221..bc085f29b5 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_async.py
@@ -35,6 +35,7 @@ async def sample_get_cmek_settings():
 
     # Initialize request argument(s)
     request = logging_v2.GetCmekSettingsRequest(
+        name="projects/{project}/cmekSettings",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_sync.py
index 19cef44934..b838221d5b 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_cmek_settings_sync.py
@@ -35,6 +35,7 @@ def sample_get_cmek_settings():
 
     # Initialize request argument(s)
     request = logging_v2.GetCmekSettingsRequest(
+        name="projects/{project}/cmekSettings",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_async.py
index 9ce42101f1..d0766aa6a9 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_async.py
@@ -35,6 +35,7 @@ async def sample_get_exclusion():
 
     # Initialize request argument(s)
     request = logging_v2.GetExclusionRequest(
+        name="projects/{project}/exclusions/{exclusion}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_sync.py
index 7712065b80..4f025180ef 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_exclusion_sync.py
@@ -35,6 +35,7 @@ def sample_get_exclusion():
 
     # Initialize request argument(s)
     request = logging_v2.GetExclusionRequest(
+        name="projects/{project}/exclusions/{exclusion}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_async.py
index b1a69a1d6f..bc8889c48b 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_async.py
@@ -35,6 +35,7 @@ async def sample_get_sink():
 
     # Initialize request argument(s)
     request = logging_v2.GetSinkRequest(
+        sink_name="projects/{project}/sinks/{sink}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_sync.py
index e1d4ed0b81..54360300ea 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_sink_sync.py
@@ -35,6 +35,7 @@ def sample_get_sink():
 
     # Initialize request argument(s)
     request = logging_v2.GetSinkRequest(
+        sink_name="projects/{project}/sinks/{sink}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_async.py
index 5594e7ac23..c280eb79b3 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_async.py
@@ -35,6 +35,7 @@ async def sample_get_view():
 
     # Initialize request argument(s)
     request = logging_v2.GetViewRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}/views/{view}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_sync.py
index 4865050cd9..ca94c6088b 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_get_view_sync.py
@@ -35,6 +35,7 @@ def sample_get_view():
 
     # Initialize request argument(s)
     request = logging_v2.GetViewRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}/views/{view}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_async.py
index ef7e8ba87a..0984985431 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_async.py
@@ -35,6 +35,7 @@ async def sample_list_buckets():
 
     # Initialize request argument(s)
     request = logging_v2.ListBucketsRequest(
+        parent="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_sync.py
index 2c1ea9332d..a6b0fc001a 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_buckets_sync.py
@@ -35,6 +35,7 @@ def sample_list_buckets():
 
     # Initialize request argument(s)
     request = logging_v2.ListBucketsRequest(
+        parent="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_async.py
index c3d7f9165b..fa305a7f19 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_async.py
@@ -35,6 +35,7 @@ async def sample_list_exclusions():
 
     # Initialize request argument(s)
     request = logging_v2.ListExclusionsRequest(
+        parent="projects/{project}/exclusions/{exclusion}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_sync.py
index 255e4851e4..c47b051b0e 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_exclusions_sync.py
@@ -35,6 +35,7 @@ def sample_list_exclusions():
 
     # Initialize request argument(s)
     request = logging_v2.ListExclusionsRequest(
+        parent="projects/{project}/exclusions/{exclusion}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_async.py
index 98d31d2535..0f44922bf6 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_async.py
@@ -35,6 +35,7 @@ async def sample_list_sinks():
 
     # Initialize request argument(s)
     request = logging_v2.ListSinksRequest(
+        parent="projects/{project}/sinks/{sink}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_sync.py
index d911ed8ed1..81dc1c7dbf 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_sinks_sync.py
@@ -35,6 +35,7 @@ def sample_list_sinks():
 
     # Initialize request argument(s)
     request = logging_v2.ListSinksRequest(
+        parent="projects/{project}/sinks/{sink}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_async.py
index 7a24536f99..13ebc35295 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_async.py
@@ -35,6 +35,7 @@ async def sample_list_views():
 
     # Initialize request argument(s)
     request = logging_v2.ListViewsRequest(
+        parent="parent_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_sync.py
index b87a931556..a61e856411 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_list_views_sync.py
@@ -35,6 +35,7 @@ def sample_list_views():
 
     # Initialize request argument(s)
     request = logging_v2.ListViewsRequest(
+        parent="parent_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_async.py
index c0a8f1efa4..badbebdd6a 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_async.py
@@ -35,6 +35,7 @@ async def sample_undelete_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.UndeleteBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_sync.py
index 8a4968c9f7..783b187d47 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_undelete_bucket_sync.py
@@ -35,6 +35,7 @@ def sample_undelete_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.UndeleteBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_async.py
index 423986e3fc..4343a258b4 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_async.py
@@ -35,6 +35,7 @@ async def sample_update_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.UpdateBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_sync.py
index 4b6a11c717..a2370594b3 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_bucket_sync.py
@@ -35,6 +35,7 @@ def sample_update_bucket():
 
     # Initialize request argument(s)
     request = logging_v2.UpdateBucketRequest(
+        name="projects/{project}/locations/{location}/buckets/{bucket}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_async.py
index 67a9e4f2bc..6c868ad063 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_async.py
@@ -35,6 +35,7 @@ async def sample_update_cmek_settings():
 
     # Initialize request argument(s)
     request = logging_v2.UpdateCmekSettingsRequest(
+        name="name_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_sync.py
index 568a350a7b..9b7f34e9d1 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_cmek_settings_sync.py
@@ -35,6 +35,7 @@ def sample_update_cmek_settings():
 
     # Initialize request argument(s)
     request = logging_v2.UpdateCmekSettingsRequest(
+        name="name_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_async.py
index 7f13ad361e..7ed53afeb7 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_async.py
@@ -34,7 +34,13 @@ async def sample_update_exclusion():
     client = logging_v2.ConfigServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    exclusion = logging_v2.LogExclusion()
+    exclusion.name = "name_value"
+    exclusion.filter = "filter_value"
+
     request = logging_v2.UpdateExclusionRequest(
+        name="projects/{project}/exclusions/{exclusion}",
+        exclusion=exclusion,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_sync.py
index bc48f0654a..6adacd542a 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_exclusion_sync.py
@@ -34,7 +34,13 @@ def sample_update_exclusion():
     client = logging_v2.ConfigServiceV2Client()
 
     # Initialize request argument(s)
+    exclusion = logging_v2.LogExclusion()
+    exclusion.name = "name_value"
+    exclusion.filter = "filter_value"
+
     request = logging_v2.UpdateExclusionRequest(
+        name="projects/{project}/exclusions/{exclusion}",
+        exclusion=exclusion,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_async.py
index a5d122924f..03c6b96b24 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_async.py
@@ -34,7 +34,13 @@ async def sample_update_sink():
     client = logging_v2.ConfigServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    sink = logging_v2.LogSink()
+    sink.name = "name_value"
+    sink.destination = "destination_value"
+
     request = logging_v2.UpdateSinkRequest(
+        sink_name="projects/{project}/sinks/{sink}",
+        sink=sink,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_sync.py
index 773e439985..3bc9c59e33 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_sink_sync.py
@@ -34,7 +34,13 @@ def sample_update_sink():
     client = logging_v2.ConfigServiceV2Client()
 
     # Initialize request argument(s)
+    sink = logging_v2.LogSink()
+    sink.name = "name_value"
+    sink.destination = "destination_value"
+
     request = logging_v2.UpdateSinkRequest(
+        sink_name="projects/{project}/sinks/{sink}",
+        sink=sink,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_async.py
index 0eda6b705c..e2a1f97e08 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_async.py
@@ -35,6 +35,7 @@ async def sample_update_view():
 
     # Initialize request argument(s)
     request = logging_v2.UpdateViewRequest(
+        name="name_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_sync.py
index bd1ad230f7..fb5811dead 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_config_service_v2_update_view_sync.py
@@ -35,6 +35,7 @@ def sample_update_view():
 
     # Initialize request argument(s)
     request = logging_v2.UpdateViewRequest(
+        name="name_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_async.py
index b317c8d26c..70b50994f5 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_async.py
@@ -35,6 +35,7 @@ async def sample_delete_log():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteLogRequest(
+        log_name="projects/{project}/logs/{log}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_sync.py
index 0470d72af8..357ee19596 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_delete_log_sync.py
@@ -35,6 +35,7 @@ def sample_delete_log():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteLogRequest(
+        log_name="projects/{project}/logs/{log}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_async.py
index 771ba15974..dc2f62c7d9 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_async.py
@@ -35,6 +35,7 @@ async def sample_list_log_entries():
 
     # Initialize request argument(s)
     request = logging_v2.ListLogEntriesRequest(
+        resource_names="projects/{project}/logs/{log}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_sync.py
index 79aa53d23d..c1a6455f6d 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_log_entries_sync.py
@@ -35,6 +35,7 @@ def sample_list_log_entries():
 
     # Initialize request argument(s)
     request = logging_v2.ListLogEntriesRequest(
+        resource_names="projects/{project}/logs/{log}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_async.py
index f9b2685a7d..a0e119a926 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_async.py
@@ -35,6 +35,7 @@ async def sample_list_logs():
 
     # Initialize request argument(s)
     request = logging_v2.ListLogsRequest(
+        parent="projects/{project}/logs/{log}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_sync.py
index 2515bc936c..13a18b0ebd 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_list_logs_sync.py
@@ -35,6 +35,7 @@ def sample_list_logs():
 
     # Initialize request argument(s)
     request = logging_v2.ListLogsRequest(
+        parent="projects/{project}/logs/{log}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_async.py
index 6ee5862d94..3202818c3f 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_async.py
@@ -35,10 +35,11 @@ async def sample_tail_log_entries():
 
     # Initialize request argument(s)
     request = logging_v2.TailLogEntriesRequest(
+        resource_names=['resource_names_value'],
     )
 
     # Make the request
-    stream = await client.tail_log_entries([])
+    stream = await client.tail_log_entries([resource_names=['resource_names_value']])
     async for response in stream:
         print("{}".format(response))
 
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_sync.py
index 442a1f3cac..909a8e8aa2 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_tail_log_entries_sync.py
@@ -35,10 +35,11 @@ def sample_tail_log_entries():
 
     # Initialize request argument(s)
     request = logging_v2.TailLogEntriesRequest(
+        resource_names=['resource_names_value'],
     )
 
     # Make the request
-    stream = client.tail_log_entries([])
+    stream = client.tail_log_entries([resource_names=['resource_names_value']])
     for response in stream:
         print("{}".format(response))
 
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_async.py
index da4353446d..1a6981c740 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_async.py
@@ -34,7 +34,11 @@ async def sample_write_log_entries():
     client = logging_v2.LoggingServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    entries = logging_v2.LogEntry()
+    entries.log_name = "log_name_value"
+
     request = logging_v2.WriteLogEntriesRequest(
+        entries=entries,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_sync.py
index a74258a1de..fdce118737 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_logging_service_v2_write_log_entries_sync.py
@@ -34,7 +34,11 @@ def sample_write_log_entries():
     client = logging_v2.LoggingServiceV2Client()
 
     # Initialize request argument(s)
+    entries = logging_v2.LogEntry()
+    entries.log_name = "log_name_value"
+
     request = logging_v2.WriteLogEntriesRequest(
+        entries=entries,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_async.py
index dc77adacf5..02f97a044b 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_async.py
@@ -34,7 +34,13 @@ async def sample_create_log_metric():
     client = logging_v2.MetricsServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    metric = logging_v2.LogMetric()
+    metric.name = "name_value"
+    metric.filter = "filter_value"
+
     request = logging_v2.CreateLogMetricRequest(
+        parent="projects/{project}/metrics/{metric}",
+        metric=metric,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_sync.py
index 61131f6bdc..0f2c282498 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_create_log_metric_sync.py
@@ -34,7 +34,13 @@ def sample_create_log_metric():
     client = logging_v2.MetricsServiceV2Client()
 
     # Initialize request argument(s)
+    metric = logging_v2.LogMetric()
+    metric.name = "name_value"
+    metric.filter = "filter_value"
+
     request = logging_v2.CreateLogMetricRequest(
+        parent="projects/{project}/metrics/{metric}",
+        metric=metric,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_async.py
index 939087d191..d0cc9d1c89 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_async.py
@@ -35,6 +35,7 @@ async def sample_delete_log_metric():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteLogMetricRequest(
+        metric_name="projects/{project}/metrics/{metric}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_sync.py
index 8a0451c319..e82eff3ea7 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_delete_log_metric_sync.py
@@ -35,6 +35,7 @@ def sample_delete_log_metric():
 
     # Initialize request argument(s)
     request = logging_v2.DeleteLogMetricRequest(
+        metric_name="projects/{project}/metrics/{metric}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_async.py
index 64eb3f59f4..effabeb34f 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_async.py
@@ -35,6 +35,7 @@ async def sample_get_log_metric():
 
     # Initialize request argument(s)
     request = logging_v2.GetLogMetricRequest(
+        metric_name="projects/{project}/metrics/{metric}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_sync.py
index 7115ee688b..d49f387ac1 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_get_log_metric_sync.py
@@ -35,6 +35,7 @@ def sample_get_log_metric():
 
     # Initialize request argument(s)
     request = logging_v2.GetLogMetricRequest(
+        metric_name="projects/{project}/metrics/{metric}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_async.py
index 9acfc76ee8..23a495c163 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_async.py
@@ -35,6 +35,7 @@ async def sample_list_log_metrics():
 
     # Initialize request argument(s)
     request = logging_v2.ListLogMetricsRequest(
+        parent="projects/{project}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_sync.py
index 702a286711..dcc0784eda 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_list_log_metrics_sync.py
@@ -35,6 +35,7 @@ def sample_list_log_metrics():
 
     # Initialize request argument(s)
     request = logging_v2.ListLogMetricsRequest(
+        parent="projects/{project}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_async.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_async.py
index c25de0cd5f..080789a8af 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_async.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_async.py
@@ -34,7 +34,13 @@ async def sample_update_log_metric():
     client = logging_v2.MetricsServiceV2AsyncClient()
 
     # Initialize request argument(s)
+    metric = logging_v2.LogMetric()
+    metric.name = "name_value"
+    metric.filter = "filter_value"
+
     request = logging_v2.UpdateLogMetricRequest(
+        metric_name="projects/{project}/metrics/{metric}",
+        metric=metric,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_sync.py b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_sync.py
index 89167019ac..1c5ce5af9d 100644
--- a/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_sync.py
+++ b/tests/integration/goldens/logging/samples/generated_samples/logging_generated_logging_v2_metrics_service_v2_update_log_metric_sync.py
@@ -34,7 +34,13 @@ def sample_update_log_metric():
     client = logging_v2.MetricsServiceV2Client()
 
     # Initialize request argument(s)
+    metric = logging_v2.LogMetric()
+    metric.name = "name_value"
+    metric.filter = "filter_value"
+
     request = logging_v2.UpdateLogMetricRequest(
+        metric_name="projects/{project}/metrics/{metric}",
+        metric=metric,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_async.py
index dbfed3042b..b3705e3af7 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_async.py
@@ -34,7 +34,15 @@ async def sample_create_instance():
     client = redis_v1.CloudRedisAsyncClient()
 
     # Initialize request argument(s)
+    instance = redis_v1.Instance()
+    instance.name = "name_value"
+    instance.tier = "STANDARD_HA"
+    instance.memory_size_gb = 1499
+
     request = redis_v1.CreateInstanceRequest(
+        parent="projects/{project}/locations/{location}",
+        instance_id="instance_id_value",
+        instance=instance,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_sync.py
index 8b874ba3c9..16f1ed86af 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_create_instance_sync.py
@@ -34,7 +34,15 @@ def sample_create_instance():
     client = redis_v1.CloudRedisClient()
 
     # Initialize request argument(s)
+    instance = redis_v1.Instance()
+    instance.name = "name_value"
+    instance.tier = "STANDARD_HA"
+    instance.memory_size_gb = 1499
+
     request = redis_v1.CreateInstanceRequest(
+        parent="projects/{project}/locations/{location}",
+        instance_id="instance_id_value",
+        instance=instance,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_async.py
index 2a706ace31..58ad65f234 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_async.py
@@ -35,6 +35,7 @@ async def sample_delete_instance():
 
     # Initialize request argument(s)
     request = redis_v1.DeleteInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_sync.py
index f2bfcef905..85ea9b2e70 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_delete_instance_sync.py
@@ -35,6 +35,7 @@ def sample_delete_instance():
 
     # Initialize request argument(s)
     request = redis_v1.DeleteInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_async.py
index 9cbe0ee552..01a418c516 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_async.py
@@ -34,7 +34,12 @@ async def sample_export_instance():
     client = redis_v1.CloudRedisAsyncClient()
 
     # Initialize request argument(s)
+    output_config = redis_v1.OutputConfig()
+    output_config.gcs_destination.uri = "uri_value"
+
     request = redis_v1.ExportInstanceRequest(
+        name="name_value",
+        output_config=output_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_sync.py
index f6ec74e9e8..f00a794b53 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_export_instance_sync.py
@@ -34,7 +34,12 @@ def sample_export_instance():
     client = redis_v1.CloudRedisClient()
 
     # Initialize request argument(s)
+    output_config = redis_v1.OutputConfig()
+    output_config.gcs_destination.uri = "uri_value"
+
     request = redis_v1.ExportInstanceRequest(
+        name="name_value",
+        output_config=output_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_async.py
index 441dd31f6a..23f4aa9135 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_async.py
@@ -35,6 +35,7 @@ async def sample_failover_instance():
 
     # Initialize request argument(s)
     request = redis_v1.FailoverInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_sync.py
index f80743627e..9de974244a 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_failover_instance_sync.py
@@ -35,6 +35,7 @@ def sample_failover_instance():
 
     # Initialize request argument(s)
     request = redis_v1.FailoverInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_async.py
index 390c4f9b1a..87273f1da4 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_async.py
@@ -35,6 +35,7 @@ async def sample_get_instance():
 
     # Initialize request argument(s)
     request = redis_v1.GetInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_sync.py
index c7ee84f231..d72d199eb2 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_get_instance_sync.py
@@ -35,6 +35,7 @@ def sample_get_instance():
 
     # Initialize request argument(s)
     request = redis_v1.GetInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_async.py
index fff17dfa84..4f5137291e 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_async.py
@@ -34,7 +34,12 @@ async def sample_import_instance():
     client = redis_v1.CloudRedisAsyncClient()
 
     # Initialize request argument(s)
+    input_config = redis_v1.InputConfig()
+    input_config.gcs_source.uri = "uri_value"
+
     request = redis_v1.ImportInstanceRequest(
+        name="name_value",
+        input_config=input_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_sync.py
index 19feb13215..3cbe064838 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_import_instance_sync.py
@@ -34,7 +34,12 @@ def sample_import_instance():
     client = redis_v1.CloudRedisClient()
 
     # Initialize request argument(s)
+    input_config = redis_v1.InputConfig()
+    input_config.gcs_source.uri = "uri_value"
+
     request = redis_v1.ImportInstanceRequest(
+        name="name_value",
+        input_config=input_config,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_async.py
index 33d0758f39..9ef268347e 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_async.py
@@ -35,6 +35,7 @@ async def sample_list_instances():
 
     # Initialize request argument(s)
     request = redis_v1.ListInstancesRequest(
+        parent="projects/{project}/locations/{location}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_sync.py
index df9296d34a..5cbdd38184 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_list_instances_sync.py
@@ -35,6 +35,7 @@ def sample_list_instances():
 
     # Initialize request argument(s)
     request = redis_v1.ListInstancesRequest(
+        parent="projects/{project}/locations/{location}",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_async.py
index 3f6263abc0..cc2340794a 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_async.py
@@ -34,7 +34,13 @@ async def sample_update_instance():
     client = redis_v1.CloudRedisAsyncClient()
 
     # Initialize request argument(s)
+    instance = redis_v1.Instance()
+    instance.name = "name_value"
+    instance.tier = "STANDARD_HA"
+    instance.memory_size_gb = 1499
+
     request = redis_v1.UpdateInstanceRequest(
+        instance=instance,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_sync.py
index e363d28c11..a98f88b579 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_update_instance_sync.py
@@ -34,7 +34,13 @@ def sample_update_instance():
     client = redis_v1.CloudRedisClient()
 
     # Initialize request argument(s)
+    instance = redis_v1.Instance()
+    instance.name = "name_value"
+    instance.tier = "STANDARD_HA"
+    instance.memory_size_gb = 1499
+
     request = redis_v1.UpdateInstanceRequest(
+        instance=instance,
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_async.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_async.py
index 1ae6bc3a6a..b170fb02d9 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_async.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_async.py
@@ -35,6 +35,8 @@ async def sample_upgrade_instance():
 
     # Initialize request argument(s)
     request = redis_v1.UpgradeInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
+        redis_version="redis_version_value",
     )
 
     # Make the request
diff --git a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_sync.py b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_sync.py
index 60759777e0..c1b6caf8b5 100644
--- a/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_sync.py
+++ b/tests/integration/goldens/redis/samples/generated_samples/redis_generated_redis_v1_cloud_redis_upgrade_instance_sync.py
@@ -35,6 +35,8 @@ def sample_upgrade_instance():
 
     # Initialize request argument(s)
     request = redis_v1.UpgradeInstanceRequest(
+        name="projects/{project}/locations/{location}/instances/{instance}",
+        redis_version="redis_version_value",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_async.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_async.py
index 72a2f65950..6d6afcf994 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_async.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_async.py
@@ -35,6 +35,7 @@ async def sample_list_resources():
 
     # Initialize request argument(s)
     request = mollusca_v1.ListResourcesRequest(
+        parent="items/{item_id}/parts/{part_id}",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_sync.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_sync.py
index e7423eaf3d..9ca10fc35c 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_sync.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_list_resources_sync.py
@@ -35,6 +35,7 @@ def sample_list_resources():
 
     # Initialize request argument(s)
     request = mollusca_v1.ListResourcesRequest(
+        parent="items/{item_id}/parts/{part_id}",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_async.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_async.py
index 26ab1b086c..d34f0a980d 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_async.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_async.py
@@ -34,11 +34,12 @@ async def sample_method_bidi_streaming():
     client = mollusca_v1.SnippetsAsyncClient()
 
     # Initialize request argument(s)
-    request = mollusca_v1.SignatureRequest(
+    request = mollusca_v1.SignatureRequestOneRequiredField(
+        my_string="my_string_value",
     )
 
     # Make the request
-    stream = await client.method_bidi_streaming([])
+    stream = await client.method_bidi_streaming([my_string="my_string_value"])
     async for response in stream:
         print("{}".format(response))
 
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_sync.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_sync.py
index 239eeb7763..daba69f1b6 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_sync.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_bidi_streaming_sync.py
@@ -34,11 +34,12 @@ def sample_method_bidi_streaming():
     client = mollusca_v1.SnippetsClient()
 
     # Initialize request argument(s)
-    request = mollusca_v1.SignatureRequest(
+    request = mollusca_v1.SignatureRequestOneRequiredField(
+        my_string="my_string_value",
     )
 
     # Make the request
-    stream = client.method_bidi_streaming([])
+    stream = client.method_bidi_streaming([my_string="my_string_value"])
     for response in stream:
         print("{}".format(response))
 
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_async.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_async.py
index 3327f9a2b4..61497f4a43 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_async.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_async.py
@@ -34,7 +34,16 @@ async def sample_method_lro_signatures():
     client = mollusca_v1.SnippetsAsyncClient()
 
     # Initialize request argument(s)
+    my_message = mollusca_v1.MessageWithNesting()
+    my_message.message.required_string = "required_string_value"
+    my_message.my_int = 656
+
     request = mollusca_v1.SignatureRequest(
+        my_string="my_string_value",
+        my_int=656,
+        my_bool=True,
+        my_message=my_message,
+        single_enum="DEFAULT",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_sync.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_sync.py
index af22fb4125..ea51e76e12 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_sync.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_lro_signatures_sync.py
@@ -34,7 +34,16 @@ def sample_method_lro_signatures():
     client = mollusca_v1.SnippetsClient()
 
     # Initialize request argument(s)
+    my_message = mollusca_v1.MessageWithNesting()
+    my_message.message.required_string = "required_string_value"
+    my_message.my_int = 656
+
     request = mollusca_v1.SignatureRequest(
+        my_string="my_string_value",
+        my_int=656,
+        my_bool=True,
+        my_message=my_message,
+        single_enum="DEFAULT",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_async.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_async.py
index b8f4629577..f7351c4b36 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_async.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_async.py
@@ -34,7 +34,16 @@ async def sample_method_one_signature():
     client = mollusca_v1.SnippetsAsyncClient()
 
     # Initialize request argument(s)
+    my_message = mollusca_v1.MessageWithNesting()
+    my_message.message.required_string = "required_string_value"
+    my_message.my_int = 656
+
     request = mollusca_v1.SignatureRequest(
+        my_string="my_string_value",
+        my_int=656,
+        my_bool=True,
+        my_message=my_message,
+        single_enum="DEFAULT",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_sync.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_sync.py
index e8e438f169..dcb1a81f0e 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_sync.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_one_signature_sync.py
@@ -34,7 +34,16 @@ def sample_method_one_signature():
     client = mollusca_v1.SnippetsClient()
 
     # Initialize request argument(s)
+    my_message = mollusca_v1.MessageWithNesting()
+    my_message.message.required_string = "required_string_value"
+    my_message.my_int = 656
+
     request = mollusca_v1.SignatureRequest(
+        my_string="my_string_value",
+        my_int=656,
+        my_bool=True,
+        my_message=my_message,
+        single_enum="DEFAULT",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_async.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_async.py
index 753c7666e5..785c22899a 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_async.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_async.py
@@ -34,7 +34,16 @@ async def sample_method_server_streaming():
     client = mollusca_v1.SnippetsAsyncClient()
 
     # Initialize request argument(s)
+    my_message = mollusca_v1.MessageWithNesting()
+    my_message.message.required_string = "required_string_value"
+    my_message.my_int = 656
+
     request = mollusca_v1.SignatureRequest(
+        my_string="my_string_value",
+        my_int=656,
+        my_bool=True,
+        my_message=my_message,
+        single_enum="DEFAULT",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_sync.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_sync.py
index 339623a2d6..5894bff3e9 100644
--- a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_sync.py
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_method_server_streaming_sync.py
@@ -34,7 +34,16 @@ def sample_method_server_streaming():
     client = mollusca_v1.SnippetsClient()
 
     # Initialize request argument(s)
+    my_message = mollusca_v1.MessageWithNesting()
+    my_message.message.required_string = "required_string_value"
+    my_message.my_int = 656
+
     request = mollusca_v1.SignatureRequest(
+        my_string="my_string_value",
+        my_int=656,
+        my_bool=True,
+        my_message=my_message,
+        single_enum="DEFAULT",
     )
 
     # Make the request
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_one_of_method_async.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_one_of_method_async.py
new file mode 100644
index 0000000000..fee612e387
--- /dev/null
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_one_of_method_async.py
@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for OneOfMethod
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install animalia-mollusca
+
+
+# [START mollusca_generated_mollusca_v1_Snippets_OneOfMethod_async]
+from animalia import mollusca_v1
+
+
+async def sample_one_of_method():
+    """Snippet for one_of_method"""
+
+    # Create a client
+    client = mollusca_v1.SnippetsAsyncClient()
+
+    # Initialize request argument(s)
+    request = mollusca_v1.OneOfRequest(
+        my_string="my_string_value",
+        non_one_of_string="non_one_of_string_value",
+    )
+
+    # Make the request
+    response = await client.one_of_method(request=request)
+
+    # Handle response
+    print("{}".format(response))
+
+# [END mollusca_generated_mollusca_v1_Snippets_OneOfMethod_async]
diff --git a/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_one_of_method_sync.py b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_one_of_method_sync.py
new file mode 100644
index 0000000000..71efe54950
--- /dev/null
+++ b/tests/snippetgen/goldens/mollusca_generated_mollusca_v1_snippets_one_of_method_sync.py
@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for OneOfMethod
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install animalia-mollusca
+
+
+# [START mollusca_generated_mollusca_v1_Snippets_OneOfMethod_sync]
+from animalia import mollusca_v1
+
+
+def sample_one_of_method():
+    """Snippet for one_of_method"""
+
+    # Create a client
+    client = mollusca_v1.SnippetsClient()
+
+    # Initialize request argument(s)
+    request = mollusca_v1.OneOfRequest(
+        my_string="my_string_value",
+        non_one_of_string="non_one_of_string_value",
+    )
+
+    # Make the request
+    response = client.one_of_method(request=request)
+
+    # Handle response
+    print("{}".format(response))
+
+# [END mollusca_generated_mollusca_v1_Snippets_OneOfMethod_sync]
diff --git a/tests/snippetgen/snippets.proto b/tests/snippetgen/snippets.proto
index 6aaa404bcf..d5bbb9f78b 100644
--- a/tests/snippetgen/snippets.proto
+++ b/tests/snippetgen/snippets.proto
@@ -29,11 +29,11 @@ service Snippets {
   option (google.api.default_host) = "mollusca.example.com";
 
   rpc MethodOneSignature(SignatureRequest) returns(Response) {
-    option (google.api.method_signature) = "a_string,an_int,a_bool";
+    option (google.api.method_signature) = "my_string,my_int,my_bool";
   }
 
   rpc MethodLroSignatures(SignatureRequest) returns(google.longrunning.Operation) {
-    option (google.api.method_signature) = "a_string,an_int,a_bool";
+    option (google.api.method_signature) = "my_string,my_int,my_bool";
     option (google.longrunning.operation_info) = {
       response_type: "LroResponse"
       metadata_type: "LroMetadata"
@@ -48,18 +48,24 @@ service Snippets {
   }
 
   rpc MethodServerStreaming(SignatureRequest) returns(stream Response) {
-    option (google.api.method_signature) = "a_string,a_bool";
+    option (google.api.method_signature) = "my_string,my_int,my_bool";
     option (google.api.method_signature) = "";
   }
 
-  rpc MethodBidiStreaming(stream SignatureRequest) returns (stream Response);
+  rpc MethodBidiStreaming(stream SignatureRequestOneRequiredField) returns (stream Response);
+
+  rpc OneOfMethod(OneOfRequest) returns (Response);
+}
+
+enum Enum {
+  DEFAULT = 0; // First value must be 0 and is the default
 }
 
 message ListResourcesRequest {
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
-      child_type: "snippets.example.com/Resource"
+      type: "snippets.example.com/Resource"
     }];
 
   int32 page_size = 2;
@@ -85,16 +91,35 @@ message Resource {
     pattern: "items/{item_id}/parts/{part_id}"
   };
   string name = 1;
+
+
+}
+
+message MessageWithNesting {
+  message NestedMessage {
+    string required_string = 1 [(google.api.field_behavior) = REQUIRED];
+    string optional_string = 2;
+  }
+
+  NestedMessage message = 1 [(google.api.field_behavior) = REQUIRED];
+  int32 my_int = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
 
+message SignatureRequestOneRequiredField {
+  string my_string = 1 [(google.api.field_behavior) = REQUIRED];
+}
+
 message SignatureRequest {
-  string a_string = 1;
-  int32 an_int = 2;
-  bool a_bool = 3;
+  string my_string = 1 [(google.api.field_behavior) = REQUIRED];
+  int32 my_int = 2 [(google.api.field_behavior) = REQUIRED];
+  bool my_bool = 3 [(google.api.field_behavior) = REQUIRED];
   map<int32, string> map_int_string = 4;
+  MessageWithNesting my_message = 5 [(google.api.field_behavior) = REQUIRED];
+  Enum single_enum = 6 [(google.api.field_behavior) = REQUIRED];
 }
 
+
 message Response {
 }
 
@@ -104,3 +129,10 @@ message LroResponse {
 message LroMetadata {
 }
 
+message OneOfRequest {
+  string non_one_of_string = 1 [(google.api.field_behavior) = REQUIRED];
+  oneof my_one_of {
+    string my_string = 2;
+    int32 my_number = 3;
+  }
+}
diff --git a/tests/unit/samplegen/common_types.py b/tests/unit/samplegen/common_types.py
index 0e9c8129d1..c0e3fc83e4 100644
--- a/tests/unit/samplegen/common_types.py
+++ b/tests/unit/samplegen/common_types.py
@@ -39,22 +39,56 @@ class DummyMethod:
 
 DummyIdent = namedtuple("DummyIdent", ["name"])
 
-DummyMessage = namedtuple(
-    "DummyMessage", ["fields", "type", "options", "ident"])
-DummyMessage.__new__.__defaults__ = (False,) * len(DummyMessage._fields)
+DummyMessageTypePB = namedtuple("DummyMessageTypePB", ["name"])
 
-DummyField = namedtuple("DummyField",
+# DummyMessageBase = namedtuple(
+#     "DummyMessage", ["fields", "type", "options", "ident",])
+# DummyMessageBase.__new__.__defaults__ = (False,) * len(DummyMessageBase._fields)
+
+
+DummyFieldBase = namedtuple("DummyField",
                         ["message",
                          "enum",
                          "name",
                          "repeated",
+                         "required",
+                         "resource_reference",
+                         "oneof",
                          "field_pb",
                          "meta",
                          "is_primitive",
                          "type"])
-DummyField.__new__.__defaults__ = (False,) * len(DummyField._fields)
+DummyFieldBase.__new__.__defaults__ = (False,) * len(DummyFieldBase._fields)
+
+
+class DummyField(DummyFieldBase):
+    @property
+    def mock_value_original_type(self):
+        return "mock_value"
+
+
+class DummyMessage:
+    def __init__(self, *, fields={}, type="", options=False, ident=False, resource_path=False):
+        self.fields = fields
+        self.type = type
+        self.options = options
+        self.ident = ident
+        self.resource_path = resource_path
+
+    def get_field(self, field_name: str):
+        return self.fields[field_name]
+
+    def oneof_fields(self):
+        return dict((field.oneof, field) for field in self.fields.values() if field.oneof)
+
+    @property
+    def required_fields(self):
+        return [field for field in self.fields.values() if field.required]
+
 
-DummyService = namedtuple("DummyService", ["methods", "client_name"])
+DummyService = namedtuple("DummyService", [
+                          "methods", "client_name", "async_client_name", "resource_messages_dict"])
+DummyService.__new__.__defaults__ = (False,) * len(DummyService._fields)
 
 DummyApiSchema = namedtuple("DummyApiSchema",
                             ["services", "naming", "messages"])
@@ -76,7 +110,8 @@ def message_factory(exp: str,
     # used to describe the field and type hierarchy,
     # e.g. "mollusc.cephalopod.coleoid"
     toks = exp.split(".")
-    messages = [DummyMessage({}, tok.upper() + "_TYPE") for tok in toks]
+    messages = [DummyMessage(fields={}, type=tok.upper() + "_TYPE")
+                for tok in toks]
     if enum:
         messages[-1] = enum
 
diff --git a/tests/unit/samplegen/golden_snippets/sample_basic.py b/tests/unit/samplegen/golden_snippets/sample_basic.py
index 5310595732..b1fdedea41 100644
--- a/tests/unit/samplegen/golden_snippets/sample_basic.py
+++ b/tests/unit/samplegen/golden_snippets/sample_basic.py
@@ -34,13 +34,14 @@ def sample_classify(video, location):
     client = molluscclient.MolluscServiceClient()
 
     # Initialize request argument(s)
-    classify_target = {}
+    classify_target = molluscclient.ClassifyTarget()
+
     # video = "path/to/mollusc/video.mkv"
     with open(video, "rb") as f:
-        classify_target["video"] = f.read()
+        classify_target.video = f.read()
 
     # location = "New Zealand"
-    classify_target["location_annotation"] = location
+    classify_target.location_annotation = location
 
     request = molluscclient.molluscs.v1.ClassifyRequest(
         classify_target=classify_target,
diff --git a/tests/unit/samplegen/golden_snippets/sample_basic_async.py b/tests/unit/samplegen/golden_snippets/sample_basic_async.py
index 5aa99485ad..59fde511d2 100644
--- a/tests/unit/samplegen/golden_snippets/sample_basic_async.py
+++ b/tests/unit/samplegen/golden_snippets/sample_basic_async.py
@@ -34,13 +34,14 @@ async def sample_classify(video, location):
     client = molluscclient.MolluscServiceAsyncClient()
 
     # Initialize request argument(s)
-    classify_target = {}
+    classify_target = molluscclient.ClassifyTarget()
+
     # video = "path/to/mollusc/video.mkv"
     with open(video, "rb") as f:
-        classify_target["video"] = f.read()
+        classify_target.video = f.read()
 
     # location = "New Zealand"
-    classify_target["location_annotation"] = location
+    classify_target.location_annotation = location
 
     request = molluscclient.molluscs.v1.ClassifyRequest(
         classify_target=classify_target,
diff --git a/tests/unit/samplegen/golden_snippets/sample_basic_unflattenable.py b/tests/unit/samplegen/golden_snippets/sample_basic_unflattenable.py
index 5310595732..b1fdedea41 100644
--- a/tests/unit/samplegen/golden_snippets/sample_basic_unflattenable.py
+++ b/tests/unit/samplegen/golden_snippets/sample_basic_unflattenable.py
@@ -34,13 +34,14 @@ def sample_classify(video, location):
     client = molluscclient.MolluscServiceClient()
 
     # Initialize request argument(s)
-    classify_target = {}
+    classify_target = molluscclient.ClassifyTarget()
+
     # video = "path/to/mollusc/video.mkv"
     with open(video, "rb") as f:
-        classify_target["video"] = f.read()
+        classify_target.video = f.read()
 
     # location = "New Zealand"
-    classify_target["location_annotation"] = location
+    classify_target.location_annotation = location
 
     request = molluscclient.molluscs.v1.ClassifyRequest(
         classify_target=classify_target,
diff --git a/tests/unit/samplegen/golden_snippets/sample_basic_void_method.py b/tests/unit/samplegen/golden_snippets/sample_basic_void_method.py
index 47fe245290..a6e7d48b6e 100644
--- a/tests/unit/samplegen/golden_snippets/sample_basic_void_method.py
+++ b/tests/unit/samplegen/golden_snippets/sample_basic_void_method.py
@@ -34,13 +34,14 @@ def sample_classify(video, location):
     client = molluscclient.MolluscServiceClient()
 
     # Initialize request argument(s)
-    classify_target = {}
+    classify_target = molluscclient.ClassifyTarget()
+
     # video = "path/to/mollusc/video.mkv"
     with open(video, "rb") as f:
-        classify_target["video"] = f.read()
+        classify_target.video = f.read()
 
     # location = "New Zealand"
-    classify_target["location_annotation"] = location
+    classify_target.location_annotation = location
 
     request = molluscclient.molluscs.v1.ClassifyRequest(
         classify_target=classify_target,
diff --git a/tests/unit/samplegen/test_integration.py b/tests/unit/samplegen/test_integration.py
index 8b88830147..95b7e74f53 100644
--- a/tests/unit/samplegen/test_integration.py
+++ b/tests/unit/samplegen/test_integration.py
@@ -24,7 +24,8 @@
 from gapic.schema import (naming, wrappers)
 
 from tests.unit.samplegen.common_types import (DummyField, DummyMessage,
-                          DummyMethod, DummyService, DummyIdent,
+
+                          DummyMessageTypePB, DummyMethod, DummyService, DummyIdent,
                           DummyApiSchema, DummyNaming, enum_factory, message_factory)
 
 from collections import namedtuple
@@ -62,13 +63,16 @@ def test_generate_sample_basic():
         type="REQUEST TYPE",
         fields={
             "classify_target": DummyField(
+                type=DummyMessageTypePB(name="ClassifyTarget"),
                 message=DummyMessage(
                     type="CLASSIFY TYPE",
                     fields={
                         "video": DummyField(
+                            type=DummyMessageTypePB(name="Video"),
                             message=DummyMessage(type="VIDEO TYPE"),
                         ),
                         "location_annotation": DummyField(
+                            type=DummyMessageTypePB(name="Location"),
                             message=DummyMessage(type="LOCATION TYPE"),
                         )
                     },
@@ -134,13 +138,16 @@ def test_generate_sample_basic_async():
         type="REQUEST TYPE",
         fields={
             "classify_target": DummyField(
+                type=DummyMessageTypePB(name="ClassifyTarget"),
                 message=DummyMessage(
-                    type="CLASSIFY TYPE",
+                    type=DummyMessageTypePB(name="CLASSIFY TYPE"),
                     fields={
                         "video": DummyField(
+                            type=DummyMessageTypePB(name="Video"),
                             message=DummyMessage(type="VIDEO TYPE"),
                         ),
                         "location_annotation": DummyField(
+                            type=DummyMessageTypePB(name="Location"),
                             message=DummyMessage(type="LOCATION TYPE"),
                         )
                     },
@@ -206,13 +213,15 @@ def test_generate_sample_basic_unflattenable():
         type="REQUEST TYPE",
         fields={
             "classify_target": DummyField(
+                type=DummyMessageTypePB(name="ClassifyTarget"),
                 message=DummyMessage(
-                    type="CLASSIFY TYPE",
                     fields={
                         "video": DummyField(
+                            type=DummyMessageTypePB(name="Video"),
                             message=DummyMessage(type="VIDEO TYPE"),
                         ),
                         "location_annotation": DummyField(
+                            type=DummyMessageTypePB(name="Location"),
                             message=DummyMessage(type="LOCATION TYPE"),
                         )
                     },
@@ -269,13 +278,15 @@ def test_generate_sample_void_method():
         type="REQUEST TYPE",
         fields={
             "classify_target": DummyField(
+                type=DummyMessageTypePB(name="ClassifyTarget"),
                 message=DummyMessage(
-                    type="CLASSIFY TYPE",
                     fields={
                         "video": DummyField(
+                            type=DummyMessageTypePB(name="Video"),
                             message=DummyMessage(type="VIDEO TYPE"),
                         ),
                         "location_annotation": DummyField(
+                            type=DummyMessageTypePB(name="Location"),
                             message=DummyMessage(type="LOCATION TYPE"),
                         )
                     },
diff --git a/tests/unit/samplegen/test_samplegen.py b/tests/unit/samplegen/test_samplegen.py
index 73798ce842..e9c9913d0f 100644
--- a/tests/unit/samplegen/test_samplegen.py
+++ b/tests/unit/samplegen/test_samplegen.py
@@ -29,7 +29,7 @@
 import gapic.schema.wrappers as wrappers
 from gapic.utils import Options
 
-from common_types import (DummyApiSchema, DummyField, DummyIdent, DummyNaming, DummyMessage,
+from common_types import (DummyApiSchema, DummyField, DummyIdent, DummyNaming, DummyMessage, DummyMessageTypePB,
                           DummyService, DummyMethod, message_factory, enum_factory)
 from gapic.samplegen_utils import utils
 
@@ -85,15 +85,25 @@ def test_define_redefinition():
 def test_preprocess_sample():
     # Verify that the default response is added.
     sample = {"service": "Mollusc", "rpc": "Classify"}
+
+    classify_request_message = DummyMessage(
+        fields={
+            "parent": DummyField(is_primitive=True, type=str, required=True, name="parent"),
+            },
+        type=DummyMessageTypePB(name="ClassifyRequest"),
+        ident=DummyIdent(name="ClassifyRequest")
+        )
+
     api_schema = DummyApiSchema(
         services={"Mollusc": DummyService(
-            methods={}, client_name="MolluscClient")},
+            methods={}, client_name="MolluscClient",
+            resource_messages_dict={})},
         naming=DummyNaming(warehouse_package_name="mollusc-cephalopod-teuthida-",
                            versioned_module_name="teuthida_v1", module_namespace="mollusc.cephalopod"),
+        messages=classify_request_message
     )
 
-    rpc = DummyMethod(input=DummyMessage(
-        ident=DummyIdent(name="ClassifyRequest")))
+    rpc = DummyMethod(input=classify_request_message)
 
     samplegen.Validator.preprocess_sample(sample, api_schema, rpc)
 
@@ -113,7 +123,149 @@ def test_preprocess_sample():
     assert client_name == "MolluscClient"
 
     request_type = sample.get("request_type")
-    assert request_type == "ClassifyRequest"
+    assert request_type.ident.name == "ClassifyRequest"
+
+    # assert mock request is created
+    assert sample["request"] == [
+        {
+            "field": "parent",
+            "value": "mock_value"
+        }
+    ]
+
+
+def test_preprocess_sample_resource_message_field():
+    # Verify that the default response is added.
+    sample = {"service": "Mollusc", "rpc": "Classify"}
+
+    classify_request_message = DummyMessage(
+        fields={
+            "parent": DummyField(is_primitive=True, type=str, required=True, name="parent", resource_reference="parent"),
+            },
+        type=DummyMessageTypePB(name="ClassifyRequest"),
+        ident=DummyIdent(name="ClassifyRequest")
+        )
+
+    api_schema = DummyApiSchema(
+        services={"Mollusc": DummyService(
+            methods={}, client_name="MolluscClient",
+            resource_messages_dict={"parent": DummyMessage(
+                resource_path="projects/{project}")}
+            )},
+        naming=DummyNaming(warehouse_package_name="mollusc-cephalopod-teuthida-",
+                           versioned_module_name="teuthida_v1", module_namespace="mollusc.cephalopod"),
+        messages=classify_request_message,
+
+    )
+
+    rpc = DummyMethod(input=classify_request_message)
+
+    samplegen.Validator.preprocess_sample(sample, api_schema, rpc)
+
+    # assert mock request is created
+    assert sample["request"] == [
+        {
+            "field": "parent",
+            "value": "projects/{project}"
+        }
+    ]
+
+
+def test_preprocess_sample_with_enum_field():
+    # Verify that the default response is added.
+    sample = {"service": "Mollusc", "rpc": "Classify"}
+
+    classify_request_message = DummyMessage(
+        fields={
+            "type": DummyField(
+                name="type",
+                required=True,
+                type=enum_factory("type", ["TYPE_1", "TYPE_2"]),
+                enum=enum_factory("type", ["TYPE_1", "TYPE_2"])
+                )
+            },
+        type=DummyMessageTypePB(name="ClassifyRequest"),
+        ident=DummyIdent(name="ClassifyRequest")
+        )
+
+    api_schema = DummyApiSchema(
+        services={"Mollusc": DummyService(
+            methods={}, client_name="MolluscClient",
+            resource_messages_dict={})},
+        naming=DummyNaming(warehouse_package_name="mollusc-cephalopod-teuthida-",
+                           versioned_module_name="teuthida_v1", module_namespace="mollusc.cephalopod"),
+        messages=classify_request_message
+    )
+
+    rpc = DummyMethod(input=classify_request_message)
+
+    samplegen.Validator.preprocess_sample(sample, api_schema, rpc)
+
+    response = sample.get("response")
+    assert response == [{"print": ["%s", "$resp"]}]
+
+    package_name = sample.get("package_name")
+    assert package_name == "mollusc-cephalopod-teuthida-"
+
+    module_name = sample.get("module_name")
+    assert module_name == "teuthida_v1"
+
+    module_namespace = sample.get("module_namespace")
+    assert module_namespace == "mollusc.cephalopod"
+
+    client_name = sample.get("client_name")
+    assert client_name == "MolluscClient"
+
+    request_type = sample.get("request_type")
+    assert request_type.ident.name == "ClassifyRequest"
+
+    # assert mock request is created
+    assert sample["request"] == [
+        {
+            "field": "type",
+            "value": "TYPE_2"
+        }
+    ]
+
+
+def test_preprocess_sample_nested_message_field():
+    # Verify that the default response is added.
+    sample = {"service": "Mollusc", "rpc": "Classify"}
+
+    classify_request_message = DummyMessage(
+        fields={
+            "config": DummyField(name="config", is_primitive=False, required=True, oneof=False, type=DummyMessage(
+                fields={"name": DummyField(
+                        is_primitive=True, type=str, name="name", required=True, oneof=False)},
+                ))
+            },
+        type=DummyMessageTypePB(name="ClassifyRequest"),
+        ident=DummyIdent(name="ClassifyRequest")
+    )
+
+    api_schema = DummyApiSchema(
+        services={"Mollusc": DummyService(
+            methods={}, client_name="MolluscClient",
+            resource_messages_dict={}
+            )},
+        naming=DummyNaming(warehouse_package_name="mollusc-cephalopod-teuthida-",
+                           versioned_module_name="teuthida_v1", module_namespace="mollusc.cephalopod"),
+        messages=classify_request_message,
+
+    )
+
+    rpc = DummyMethod(input=classify_request_message)
+
+    samplegen.Validator.preprocess_sample(sample, api_schema, rpc)
+
+    # assert mock request is created
+    assert sample["request"] == [
+        {
+            "field": "config.name",
+            "value": "mock_value"
+        },
+
+    ]
 
 
 def test_preprocess_sample_void_method():
@@ -1919,7 +2071,6 @@ def test_generate_sample_spec_basic():
         "sample_type": "standalone",
         "rpc": "Ramshorn",
         "transport": "grpc",
-        "request": [],
         "service": "animalia.mollusca.v1.Squid",
         "region_tag": "example_generated_mollusca_v1_Squid_Ramshorn_sync",
         "description": "Snippet for ramshorn"
@@ -1929,7 +2080,6 @@ def test_generate_sample_spec_basic():
         "sample_type": "standalone",
         "rpc": "Ramshorn",
         "transport": "grpc-async",
-        "request": [],
         "service": "animalia.mollusca.v1.Squid",
         "region_tag": "example_generated_mollusca_v1_Squid_Ramshorn_async",
         "description": "Snippet for ramshorn"
diff --git a/tests/unit/samplegen/test_template.py b/tests/unit/samplegen/test_template.py
index edd7e3b0fe..edf59a925f 100644
--- a/tests/unit/samplegen/test_template.py
+++ b/tests/unit/samplegen/test_template.py
@@ -64,7 +64,7 @@ def test_render_attr_value():
         {{ frags.render_request_attr("mollusc", request) }}
         ''',
         '''
-        mollusc["order"] = Molluscs.Cephalopoda.Coleoidea
+        mollusc.order = Molluscs.Cephalopoda.Coleoidea
         ''',
         request=samplegen.AttributeRequestSetup(
             field="order",
@@ -80,8 +80,9 @@ def test_render_attr_input_parameter():
         {{ frags.render_request_attr("squid", request) }}
         ''',
         '''
+
         # species = 'Humboldt'
-        squid["species"] = species
+        squid.species = species
         ''',
         request=samplegen.AttributeRequestSetup(field="species",
                                                 value="'Humboldt'",
@@ -95,9 +96,10 @@ def test_render_attr_file():
         {{ frags.render_request_attr("classify_mollusc_request", request) }}
         ''',
         '''
+
         # mollusc_video_path = 'path/to/mollusc/video.mkv'
         with open(mollusc_video_path, "rb") as f:
-            classify_mollusc_request["mollusc_video"] = f.read()
+            classify_mollusc_request.mollusc_video = f.read()
         ''',
         request=samplegen.AttributeRequestSetup(field="mollusc_video",
                                                 value="'path/to/mollusc/video.mkv'",
@@ -110,29 +112,29 @@ def test_render_request_basic():
     check_template(
         '''
         {% import "feature_fragments.j2" as frags %}
-        {{ frags.render_request_setup(request) }}
+        {{ frags.render_request_setup(request, module_name, request_type) }}
         ''',
         '''
         # Initialize request argument(s)
-        cephalopod = {}
+        cephalopod = mollusca.Cephalopod()
+
         # cephalopod_mass = '10 kg'
-        cephalopod["mantle_mass"] = cephalopod_mass
+        cephalopod.mantle_mass = cephalopod_mass
 
         # photo_path = 'path/to/cephalopod/photo.jpg'
         with open(photo_path, "rb") as f:
-            cephalopod["photo"] = f.read()
+            cephalopod.photo = f.read()
+        cephalopod.order = Molluscs.Cephalopoda.Coleoidea
 
-        cephalopod["order"] = Molluscs.Cephalopoda.Coleoidea
+        gastropod = mollusca.Gastropod()
 
-        gastropod = {}
         # gastropod_mass = '1 kg'
-        gastropod["mantle_mass"] = gastropod_mass
-
-        gastropod["order"] = Molluscs.Gastropoda.Pulmonata
+        gastropod.mantle_mass = gastropod_mass
+        gastropod.order = Molluscs.Gastropoda.Pulmonata
 
         # movie_path = 'path/to/gastropod/movie.mkv'
         with open(movie_path, "rb") as f:
-            gastropod["movie"] = f.read()
+            gastropod.movie = f.read()
 
         ''',
         request=samplegen.FullRequest(
@@ -176,6 +178,19 @@ def test_render_request_basic():
                                              single=None),
             ],
             flattenable=True,
+        ),
+        module_name="mollusca",
+        request_type=common_types.DummyMessage(
+            fields={
+                "cephalopod": common_types.DummyField(
+                    name="cephalopod",
+                    type=common_types.DummyMessageTypePB(name="Cephalopod")
+                ),
+                "gastropod": common_types.DummyField(
+                    name="gastropod",
+                    type=common_types.DummyMessageTypePB(name="Gastropod")
+                )
+            }
         )
     )
 
@@ -184,29 +199,29 @@ def test_render_request_unflattened():
     check_template(
         '''
         {% import "feature_fragments.j2" as frags %}
-        {{ frags.render_request_setup(request, "mollusca", "CreateMolluscRequest") }}
+        {{ frags.render_request_setup(request, module_name, request_type) }}
         ''',
         '''
         # Initialize request argument(s)
-        cephalopod = {}
+        cephalopod = mollusca.Cephalopod()
+
         # cephalopod_mass = '10 kg'
-        cephalopod["mantle_mass"] = cephalopod_mass
+        cephalopod.mantle_mass = cephalopod_mass
 
         # photo_path = 'path/to/cephalopod/photo.jpg'
         with open(photo_path, "rb") as f:
-            cephalopod["photo"] = f.read()
+            cephalopod.photo = f.read()
+        cephalopod.order = Molluscs.Cephalopoda.Coleoidea
 
-        cephalopod["order"] = Molluscs.Cephalopoda.Coleoidea
+        gastropod = mollusca.Gastropod()
 
-        gastropod = {}
         # gastropod_mass = '1 kg'
-        gastropod["mantle_mass"] = gastropod_mass
-
-        gastropod["order"] = Molluscs.Gastropoda.Pulmonata
+        gastropod.mantle_mass = gastropod_mass
+        gastropod.order = Molluscs.Gastropoda.Pulmonata
 
         # movie_path = 'path/to/gastropod/movie.mkv'
         with open(movie_path, "rb") as f:
-            gastropod["movie"] = f.read()
+            gastropod.movie = f.read()
 
         request = mollusca.CreateMolluscRequest(
             cephalopod=cephalopod,
@@ -255,11 +270,25 @@ def test_render_request_unflattened():
                                              single=None),
                 samplegen.TransformedRequest(base="bivalve",
                                              body=None,
-                                             single='"humboldt"'),
+                                             single=samplegen.AttributeRequestSetup(
+                                                 value='"humboldt"',
+                                             ),),
             ]
         ),
-        api=common_types.DummyApiSchema(),
-
+        module_name="mollusca",
+        request_type=common_types.DummyMessage(
+            fields={
+                "cephalopod": common_types.DummyField(
+                    name="cephalopod",
+                    type=common_types.DummyMessageTypePB(name="Cephalopod")
+                ),
+                "gastropod": common_types.DummyField(
+                    name="gastropod",
+                    type=common_types.DummyMessageTypePB(name="Gastropod")
+                )
+            },
+            ident=common_types.DummyIdent(name="CreateMolluscRequest")
+        )
     )
 
 
@@ -915,6 +944,35 @@ def test_render_method_call_basic_async():
     )
 
 
+def test_render_method_call_basic_async():
+    check_template(
+        '''
+        {% import "feature_fragments.j2" as frags %}
+        {{ frags.render_method_call({"rpc": "CategorizeMollusc", "request": request},
+                                  calling_form, calling_form_enum, transport) }}
+        ''',
+        '''
+        await client.categorize_mollusc(request=request)
+        ''',
+        request=samplegen.FullRequest(
+            request_list=[
+                samplegen.TransformedRequest(base="video",
+                                             body=True,
+                                             single=None),
+                samplegen.TransformedRequest(base="audio",
+                                             body=True,
+                                             single=None),
+                samplegen.TransformedRequest(base="guess",
+                                             body=True,
+                                             single=None)
+            ],
+        ),
+        calling_form_enum=CallingForm,
+        calling_form=CallingForm.Request,
+        transport="grpc-async"
+    )
+
+
 def test_render_method_call_basic_flattenable():
     check_template(
         '''
diff --git a/tests/unit/schema/wrappers/test_field.py b/tests/unit/schema/wrappers/test_field.py
index 99f2edc9f7..2fa2c09783 100644
--- a/tests/unit/schema/wrappers/test_field.py
+++ b/tests/unit/schema/wrappers/test_field.py
@@ -17,6 +17,7 @@
 import pytest
 
 from google.api import field_behavior_pb2
+from google.api import resource_pb2
 from google.protobuf import descriptor_pb2
 
 from gapic.schema import api
@@ -108,6 +109,13 @@ def test_ident_sphinx_repeated():
     assert field.ident.sphinx == 'Sequence[bool]'
 
 
+def test_resource_reference():
+    field = make_field(type='TYPE_STRING')
+    field.options.Extensions[resource_pb2.resource_reference].type = "translate.googleapis.com/Glossary"
+
+    assert field.resource_reference == "translate.googleapis.com/Glossary"
+
+
 def test_type_primitives():
     assert make_field(type='TYPE_FLOAT').type.python_type == float
     assert make_field(type='TYPE_INT64').type.python_type == int
@@ -154,6 +162,11 @@ def test_mock_value_int():
     assert field.mock_value == '728'
 
 
+def test_mock_value_original_type_int():
+    field = make_field(name='foo_bar', type='TYPE_INT32')
+    assert field.mock_value_original_type == 728
+
+
 def test_oneof():
     REP = descriptor_pb2.FieldDescriptorProto.Label.Value('LABEL_REPEATED')
 
@@ -166,26 +179,51 @@ def test_mock_value_float():
     assert field.mock_value == '0.728'
 
 
+def test_mock_value_original_type_float():
+    field = make_field(name='foo_bar', type='TYPE_DOUBLE')
+    assert field.mock_value_original_type == 0.728
+
+
 def test_mock_value_bool():
     field = make_field(name='foo_bar', type='TYPE_BOOL')
     assert field.mock_value == 'True'
 
 
+def test_mock_value_original_type_bool():
+    field = make_field(name='foo_bar', type='TYPE_BOOL')
+    assert field.mock_value_original_type == True
+
+
 def test_mock_value_str():
     field = make_field(name='foo_bar', type='TYPE_STRING')
     assert field.mock_value == "'foo_bar_value'"
 
 
+def test_mock_value_original_type_str():
+    field = make_field(name='foo_bar', type='TYPE_STRING')
+    assert field.mock_value_original_type == "foo_bar_value"
+
+
 def test_mock_value_bytes():
     field = make_field(name='foo_bar', type='TYPE_BYTES')
     assert field.mock_value == "b'foo_bar_blob'"
 
 
+def test_mock_value_original_type_bytes():
+    field = make_field(name='foo_bar', type='TYPE_BYTES')
+    assert field.mock_value_original_type == b"foo_bar_blob"
+
+
 def test_mock_value_repeated():
     field = make_field(name='foo_bar', type='TYPE_STRING', label=3)
     assert field.mock_value == "['foo_bar_value']"
 
 
+def test_mock_value_original_type_repeated():
+    field = make_field(name='foo_bar', type='TYPE_STRING', label=3)
+    assert field.mock_value_original_type == ["foo_bar_value"]
+
+
 def test_mock_value_map():
     entry_msg = make_message(
         name='SquidEntry',
@@ -251,6 +289,33 @@ def test_mock_value_message():
     assert field.mock_value == 'bogus.Message(foo=324)'
 
 
+def test_mock_value_original_type_message_errors():
+    subfields = collections.OrderedDict((
+        ('foo', make_field(name='foo', type='TYPE_INT32')),
+        ('bar', make_field(name='bar', type='TYPE_STRING'))
+    ))
+    message = wrappers.MessageType(
+        fields=subfields,
+        message_pb=descriptor_pb2.DescriptorProto(name='Message', field=[
+            i.field_pb for i in subfields.values()
+        ]),
+        meta=metadata.Metadata(address=metadata.Address(
+            module='bogus',
+            name='Message',
+        )),
+        nested_enums={},
+        nested_messages={},
+    )
+    field = make_field(
+        type='TYPE_MESSAGE',
+        type_name='bogus.Message',
+        message=message,
+    )
+
+    with pytest.raises(TypeError):
+        mock = field.mock_value_original_type
+
+
 def test_mock_value_recursive():
     # The elaborate setup is an unfortunate requirement.
     file_pb = descriptor_pb2.FileDescriptorProto(
@@ -290,3 +355,7 @@ def test_field_name_kword_disambiguation():
         name="frum",
     )
     assert frum_field.name == "frum"
+
+
+def test_field_resource_reference():
+    field = make_field(name='parent', type='TYPE_STRING')
diff --git a/tests/unit/schema/wrappers/test_message.py b/tests/unit/schema/wrappers/test_message.py
index 3de69d3e54..f0b5d61166 100644
--- a/tests/unit/schema/wrappers/test_message.py
+++ b/tests/unit/schema/wrappers/test_message.py
@@ -18,6 +18,7 @@
 
 import pytest
 
+from google.api import field_behavior_pb2
 from google.api import resource_pb2
 from google.protobuf import descriptor_pb2
 
@@ -275,3 +276,34 @@ def test_oneof_fields():
         "mass": [mass_kg, mass_lbs],
         "length": [length_m, length_f],
     }
+    assert actual_oneofs == expected_oneofs
+
+
+def test_required_fields():
+    REQUIRED = field_behavior_pb2.FieldBehavior.Value('REQUIRED')
+
+    mass_kg = make_field(name="mass_kg", type=5)
+    mass_kg.options.Extensions[field_behavior_pb2.field_behavior].append(
+        REQUIRED
+    )
+
+    length_m = make_field(name="length_m", type=5)
+    length_m.options.Extensions[field_behavior_pb2.field_behavior].append(
+        REQUIRED
+    )
+
+    color = make_field(name="color", type=5)
+    color.options.Extensions[field_behavior_pb2.field_behavior].append(
+        REQUIRED
+    )
+
+    request = make_message(
+        name="CreateMolluscReuqest",
+        fields=(
+            mass_kg,
+            length_m,
+            color,
+        ),
+    )
+
+    assert set(request.required_fields) == {mass_kg, length_m, color}
diff --git a/tests/unit/schema/wrappers/test_service.py b/tests/unit/schema/wrappers/test_service.py
index 9c47797daf..f93ddc814e 100644
--- a/tests/unit/schema/wrappers/test_service.py
+++ b/tests/unit/schema/wrappers/test_service.py
@@ -41,8 +41,10 @@ def make_resource_opts(*args):
     # Resources are labeled via an options extension
     opts = descriptor_pb2.MessageOptions()
     opts.Extensions[resource_pb2.resource].pattern.append(
-        "/".join("{{{arg}}}/{arg}" for arg in args)
+        "/".join(f"{arg}/{{{arg}}}" for arg in args)
     )
+    opts.Extensions[resource_pb2.resource].type = "/".join(
+        f"{arg}/{{{arg}}}" for arg in args)
     return opts
 
 
@@ -249,6 +251,87 @@ def test_resource_messages():
     assert expected == actual
 
 
+def test_resource_messages_dict():
+    # Regular, top level resource
+    squid_resource = make_message("Squid", options=make_resource_opts("squid"))
+    squid_request = make_message(
+        "CreateSquid",
+        fields=(
+            make_field('squid', message=squid_resource),
+        ),
+    )
+
+    # Nested resource
+    squamosa_message = make_message(
+        "Squamosa",
+        options=make_resource_opts("clam", "squamosa"),
+    )
+    clam_resource = make_message(
+        "Clam",
+        options=make_resource_opts("clam"),
+        fields=(
+            make_field('squamosa', message=squamosa_message),
+        ),
+    )
+    clam_request = make_message(
+        'CreateClam',
+        fields=(
+            make_field('clam', message=clam_resource),
+            # Red herring, not resources :)
+            make_field('zone', 2, enum=make_enum('Zone')),
+            make_field('pearls', 3, True, message=make_message('Pearl')),
+        ),
+    )
+
+    # Some special APIs have request messages that _are_ resources.
+    whelk_resource = make_message("Whelk", options=make_resource_opts("whelk"))
+
+    # Not a resource
+    octopus_request = make_message(
+        "CreateOctopus",
+        fields=(
+            make_field('Octopus', message=make_message('Octopus')),
+        ),
+    )
+
+    service = make_service(
+        'Molluscs',
+        methods=(
+            make_method(
+                f"{message.name}",
+                input_message=message,
+            )
+            for message in (
+                squid_request,
+                clam_request,
+                whelk_resource,
+                octopus_request,
+            )
+        )
+    )
+
+    expected = {
+        # Service specific
+        "squid/{squid}": squid_resource,
+        "clam/{clam}": clam_resource,
+        "whelk/{whelk}": whelk_resource,
+        "clam/{clam}/squamosa/{squamosa}": squamosa_message,
+        # Common resources
+        "cloudresourcemanager.googleapis.com/Project":
+            service.common_resources["cloudresourcemanager.googleapis.com/Project"].message_type,
+        "cloudresourcemanager.googleapis.com/Organization":
+            service.common_resources["cloudresourcemanager.googleapis.com/Organization"].message_type,
+        "cloudresourcemanager.googleapis.com/Folder":
+            service.common_resources["cloudresourcemanager.googleapis.com/Folder"].message_type,
+        "cloudbilling.googleapis.com/BillingAccount":
+            service.common_resources["cloudbilling.googleapis.com/BillingAccount"].message_type,
+        "locations.googleapis.com/Location":
+            service.common_resources["locations.googleapis.com/Location"].message_type
+    }
+    actual = service.resource_messages_dict
+    assert expected == actual
+
+
 def test_service_unknown_resource_reference():
     # This happens occasionally.
     opts = descriptor_pb2.FieldOptions()