Update AutoRest C# version to 3.0.0-beta.20230721.1

.vscode/cspell.json

@@ -1093,7 +1093,8 @@
         "Zilla",
         "Guage",
         "Plex",
-        "Vstsrm"
+        "Vstsrm",
+        "Localizable"
       ]
     },
     {

eng/Packages.Data.props

@@ -173,7 +173,7 @@
     All should have PrivateAssets="All" set so they don't become package dependencies
   -->
   <ItemGroup>
-    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20230720.1" PrivateAssets="All" />
+    <PackageReference Update="Microsoft.Azure.AutoRest.CSharp" Version="3.0.0-beta.20230721.1" PrivateAssets="All" />
     <PackageReference Update="Azure.ClientSdk.Analyzers" Version="0.1.1-dev.20230131.1" PrivateAssets="All" />
     <PackageReference Update="coverlet.collector" Version="3.2.0" PrivateAssets="All" />
     <PackageReference Update="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.1" PrivateAssets="All" />

eng/emitter-package.json

@@ -1,6 +1,6 @@
 {
     "main": "dist/src/index.js",
     "dependencies": {
-      "@azure-tools/typespec-csharp": "0.2.0-beta.20230720.1"
+      "@azure-tools/typespec-csharp": "0.2.0-beta.20230721.1"
     }
 }

sdk/appconfiguration/Azure.ResourceManager.AppConfiguration/src/autorest.md

@@ -13,6 +13,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 no-property-type-replacement: RegenerateKeyContent
 

sdk/batch/Azure.ResourceManager.Batch/src/autorest.md

@@ -14,8 +14,9 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
-# mgmt-debug: 
+# mgmt-debug:
 #   show-serialized-names: true
 
 format-by-name-rules:
@@ -189,7 +190,7 @@ rename-mapping:
   AccountKeyType: BatchAccountKeyType
   BatchAccountRegenerateKeyParameters.keyName: KeyType
   Certificate.properties.thumbprint: ThumbprintString
-  CertificateCreateOrUpdateParameters.properties.thumbprint: ThumbprintString 
+  CertificateCreateOrUpdateParameters.properties.thumbprint: ThumbprintString
 
 directive:
 # TODO -- remove this and use rename-mapping when it is supported

sdk/cdn/Azure.ResourceManager.Cdn/src/autorest.md

@@ -13,6 +13,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 operation-id-mappings:
   CdnEndpoint:
@@ -62,7 +63,7 @@ rename-rules:
   SHA256: Sha256
   EndpointPropertiesUpdateParametersDeliveryPolicy: EndpointDeliveryPolicy
 
-no-property-type-replacement: 
+no-property-type-replacement:
   - ContinentsResponseContinentsItem
   - EndpointPropertiesUpdateParametersDefaultOriginGroup
   - EndpointPropertiesUpdateParametersWebApplicationFirewallPolicyLink
@@ -90,7 +91,7 @@ rename-mapping:
   CacheLevel: CdnCacheLevel
   SslProtocol: DeliveryRuleSslProtocol
   SslProtocolMatchCondition: DeliveryRuleSslProtocolMatchCondition
-  
+
 directive:
   - from: swagger-document
     where: $.definitions..parameters

sdk/desktopvirtualization/Azure.ResourceManager.DesktopVirtualization/src/autorest.md

@@ -16,8 +16,9 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
-#mgmt-debug: 
+#mgmt-debug:
 #  show-serialized-names: true
 
 format-by-name-rules:

sdk/digitaltwins/Azure.ResourceManager.DigitalTwins/src/autorest.md

@@ -14,6 +14,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 rename-mapping:
   AzureDataExplorerConnectionProperties.adxResourceId: -|arm-id

sdk/formrecognizer/Azure.AI.FormRecognizer/src/autorest.md

@@ -3,6 +3,7 @@
 Run `dotnet build /t:GenerateCode` to generate code.
 
 ``` yaml
+deserialize-null-collection-as-null-value: true
 batch:
   - tag: release_2_1
   - tag: 2023-02-28-preview

sdk/frontdoor/Azure.ResourceManager.FrontDoor/src/autorest.md

@@ -13,6 +13,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 override-operation-name:
   Endpoints_PurgeContent: PurgeContent

sdk/guestconfiguration/Azure.ResourceManager.GuestConfiguration/src/autorest.md

@@ -14,6 +14,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 request-path-to-resource-name:
   /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/providers/Microsoft.GuestConfiguration/guestConfigurationAssignments/{guestConfigurationAssignmentName}: GuestConfigurationVmAssignment

sdk/kubernetesconfiguration/Azure.ResourceManager.KubernetesConfiguration/src/autorest.md

@@ -13,6 +13,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 format-by-name-rules:
   'tenantId': 'uuid'

sdk/machinelearningservices/Azure.ResourceManager.MachineLearning/src/autorest.md

@@ -14,6 +14,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 format-by-name-rules:
   'tenantId': 'uuid'

sdk/monitor/Azure.ResourceManager.Monitor/src/autorest.md

@@ -14,6 +14,7 @@ clear-output-folder: true
 skip-csproj: true
 modelerfour:
   flatten-payloads: false
+deserialize-null-collection-as-null-value: true
 
 format-by-name-rules:
   "tenantId": "uuid"

sdk/openai/Azure.AI.OpenAI/api/Azure.AI.OpenAI.netstandard2.0.cs

@@ -4,7 +4,7 @@ public static partial class AzureOpenAIModelFactory
     {
         public static Azure.AI.OpenAI.ChatChoice ChatChoice(Azure.AI.OpenAI.ChatMessage message = null, int index = 0, Azure.AI.OpenAI.CompletionsFinishReason finishReason = default(Azure.AI.OpenAI.CompletionsFinishReason), Azure.AI.OpenAI.ChatMessage deltaMessage = null, Azure.AI.OpenAI.ContentFilterResults contentFilterResults = null) { throw null; }
         public static Azure.AI.OpenAI.ChatCompletions ChatCompletions(string id = null, System.DateTimeOffset created = default(System.DateTimeOffset), System.Collections.Generic.IEnumerable<Azure.AI.OpenAI.ChatChoice> choices = null, System.Collections.Generic.IEnumerable<Azure.AI.OpenAI.PromptFilterResult> promptFilterResults = null, Azure.AI.OpenAI.CompletionsUsage usage = null) { throw null; }
-        public static Azure.AI.OpenAI.Choice Choice(string text = null, int index = 0, Azure.AI.OpenAI.ContentFilterResults contentFilterResults = null, Azure.AI.OpenAI.CompletionsLogProbabilityModel logProbabilityModel = null, Azure.AI.OpenAI.CompletionsFinishReason finishReason = default(Azure.AI.OpenAI.CompletionsFinishReason)) { throw null; }
+        public static Azure.AI.OpenAI.Choice Choice(string text = null, int index = 0, Azure.AI.OpenAI.ContentFilterResults contentFilterResults = null, Azure.AI.OpenAI.CompletionsLogProbabilityModel logProbabilityModel = null, Azure.AI.OpenAI.CompletionsFinishReason? finishReason = default(Azure.AI.OpenAI.CompletionsFinishReason?)) { throw null; }
         public static Azure.AI.OpenAI.Completions Completions(string id = null, System.DateTimeOffset created = default(System.DateTimeOffset), System.Collections.Generic.IEnumerable<Azure.AI.OpenAI.PromptFilterResult> promptFilterResults = null, System.Collections.Generic.IEnumerable<Azure.AI.OpenAI.Choice> choices = null, Azure.AI.OpenAI.CompletionsUsage usage = null) { throw null; }
         public static Azure.AI.OpenAI.CompletionsLogProbabilityModel CompletionsLogProbabilityModel(System.Collections.Generic.IEnumerable<string> tokens = null, System.Collections.Generic.IEnumerable<float?> tokenLogProbabilities = null, System.Collections.Generic.IEnumerable<System.Collections.Generic.IDictionary<string, float?>> topLogProbabilities = null, System.Collections.Generic.IEnumerable<int> textOffsets = null) { throw null; }
         public static Azure.AI.OpenAI.CompletionsUsage CompletionsUsage(int completionTokens = 0, int promptTokens = 0, int totalTokens = 0) { throw null; }
@@ -25,7 +25,7 @@ public partial class ChatChoice
     {
         internal ChatChoice() { }
         public Azure.AI.OpenAI.ContentFilterResults ContentFilterResults { get { throw null; } }
-        public Azure.AI.OpenAI.CompletionsFinishReason FinishReason { get { throw null; } }
+        public Azure.AI.OpenAI.CompletionsFinishReason? FinishReason { get { throw null; } }
         public int Index { get { throw null; } }
         public Azure.AI.OpenAI.ChatMessage Message { get { throw null; } }
     }
@@ -88,7 +88,7 @@ public partial class Choice
     {
         internal Choice() { }
         public Azure.AI.OpenAI.ContentFilterResults ContentFilterResults { get { throw null; } }
-        public Azure.AI.OpenAI.CompletionsFinishReason FinishReason { get { throw null; } }
+        public Azure.AI.OpenAI.CompletionsFinishReason? FinishReason { get { throw null; } }
         public int Index { get { throw null; } }
         public Azure.AI.OpenAI.CompletionsLogProbabilityModel LogProbabilityModel { get { throw null; } }
         public string Text { get { throw null; } }
@@ -315,7 +315,7 @@ internal PromptFilterResult() { }
     public partial class StreamingChatChoice
     {
         internal StreamingChatChoice() { }
-        public Azure.AI.OpenAI.CompletionsFinishReason FinishReason { get { throw null; } }
+        public Azure.AI.OpenAI.CompletionsFinishReason? FinishReason { get { throw null; } }
         public int? Index { get { throw null; } }
         public System.Collections.Generic.IAsyncEnumerable<Azure.AI.OpenAI.ChatMessage> GetMessageStreaming([System.Runtime.CompilerServices.EnumeratorCancellationAttribute] System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
     }
@@ -331,7 +331,7 @@ protected virtual void Dispose(bool disposing) { }
     public partial class StreamingChoice
     {
         internal StreamingChoice() { }
-        public Azure.AI.OpenAI.CompletionsFinishReason FinishReason { get { throw null; } }
+        public Azure.AI.OpenAI.CompletionsFinishReason? FinishReason { get { throw null; } }
         public int? Index { get { throw null; } }
         public Azure.AI.OpenAI.CompletionsLogProbabilityModel LogProbabilityModel { get { throw null; } }
         public System.Collections.Generic.IAsyncEnumerable<string> GetTextStreaming([System.Runtime.CompilerServices.EnumeratorCancellationAttribute] System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }

sdk/openai/Azure.AI.OpenAI/src/Custom/StreamingChatChoice.cs

@@ -33,7 +33,7 @@ public class StreamingChatChoice
         /// Normal termination typically provides "stop" and encountering token limits in a request typically
         /// provides "length." If no value is present, this StreamingChoice is still in progress.
         /// </remarks>
-        public CompletionsFinishReason FinishReason => GetLocked(() => _baseChoices.Last().FinishReason);
+        public CompletionsFinishReason? FinishReason => GetLocked(() => _baseChoices.Last().FinishReason);
 
         internal ChatMessage StreamingDeltaMessage { get; set; }
 

sdk/openai/Azure.AI.OpenAI/src/Custom/StreamingChoice.cs

@@ -33,7 +33,7 @@ public class StreamingChoice
         /// Normal termination typically provides "stop" and encountering token limits in a request typically
         /// provides "length." If no value is present, this StreamingChoice is still in progress.
         /// </remarks>
-        public CompletionsFinishReason FinishReason => GetLocked(() => _baseChoices.Last().FinishReason);
+        public CompletionsFinishReason? FinishReason => GetLocked(() => _baseChoices.Last().FinishReason);
 
         internal bool StreamingDoneSignalReceived
         {