.Net: Fix GeminiPromptExecutionSettings.Clone dropping settable properties

dotnet/src/Connectors/Connectors.Google.UnitTests/GeminiPromptExecutionSettingsTests.cs

@@ -194,6 +194,7 @@ public void PromptExecutionSettingsCloneWorksAsExpected(string thinkingConfigJso
         string json = $$"""
                         {
                           "model_id": "gemini-pro",
+                          "service_id": "gemini-service",
                           "temperature": 0.7,
                           "top_p": 0.7,
                           "top_k": 25,
@@ -207,23 +208,30 @@ public void PromptExecutionSettingsCloneWorksAsExpected(string thinkingConfigJso
                               "threshold": "{{threshold.Label}}"
                             }
                           ],
+                          "labels": { "env": "test", "team": "sk" },
+                          "cached_content": "projects/p/locations/l/cachedContents/c",
                           "thinking_config": {{thinkingConfigJson}}
                         }
                         """;
         var executionSettings = JsonSerializer.Deserialize<GeminiPromptExecutionSettings>(json);
+        executionSettings!.FunctionChoiceBehavior = FunctionChoiceBehavior.Auto();
 
         // Act
-        var clone = executionSettings!.Clone() as GeminiPromptExecutionSettings;
+        var clone = executionSettings.Clone() as GeminiPromptExecutionSettings;
 
         // Assert
         Assert.NotNull(clone);
         Assert.Equal(executionSettings.ModelId, clone.ModelId);
+        Assert.Equal(executionSettings.ServiceId, clone.ServiceId);
         Assert.Equal(executionSettings.Temperature, clone.Temperature);
         Assert.Equivalent(executionSettings.ExtensionData, clone.ExtensionData);
         Assert.Equivalent(executionSettings.StopSequences, clone.StopSequences);
         Assert.Equivalent(executionSettings.SafetySettings, clone.SafetySettings);
         Assert.Equal(executionSettings.AudioTimestamp, clone.AudioTimestamp);
         Assert.Equivalent(executionSettings.ThinkingConfig, clone.ThinkingConfig);
+        Assert.Equivalent(executionSettings.Labels, clone.Labels);
+        Assert.Equal(executionSettings.CachedContent, clone.CachedContent);
+        Assert.Same(executionSettings.FunctionChoiceBehavior, clone.FunctionChoiceBehavior);
     }
 
     [Fact]

dotnet/src/Connectors/Connectors.Google/GeminiPromptExecutionSettings.cs

@@ -326,6 +326,8 @@ public override PromptExecutionSettings Clone()
         return new GeminiPromptExecutionSettings()
         {
             ModelId = this.ModelId,
+            ServiceId = this.ServiceId,
+            FunctionChoiceBehavior = this.FunctionChoiceBehavior,
             ExtensionData = this.ExtensionData is not null ? new Dictionary<string, object>(this.ExtensionData) : null,
             Temperature = this.Temperature,
             TopP = this.TopP,
@@ -338,6 +340,8 @@ public override PromptExecutionSettings Clone()
             AudioTimestamp = this.AudioTimestamp,
             ResponseMimeType = this.ResponseMimeType,
             ResponseSchema = this.ResponseSchema,
+            Labels = this.Labels is not null ? new Dictionary<string, string>(this.Labels) : null,
+            CachedContent = this.CachedContent,
             ThinkingConfig = this.ThinkingConfig?.Clone()
         };
     }