fix build and tests (#3134)

Author: LittleLittleCloud

dotnet/sample/AutoGen.BasicSamples/CodeSnippet/CreateAnAgent.cs

@@ -129,7 +129,7 @@ public async Task CodeSnippet5()
             },
             functionMap: new Dictionary<string, Func<string, Task<string>>>
             {
-                { this.UpperCaseFunction.Name, this.UpperCaseWrapper }, // The wrapper function for the UpperCase function
+                { this.UpperCaseFunctionContract.Name, this.UpperCaseWrapper }, // The wrapper function for the UpperCase function
             });
 
         var response = await assistantAgent.SendAsync("hello");

dotnet/sample/AutoGen.BasicSamples/Example07_Dynamic_GroupChat_Calculate_Fibonacci.cs

@@ -8,6 +8,7 @@
 using AutoGen.Core;
 using AutoGen.DotnetInteractive;
 using AutoGen.OpenAI;
+using AutoGen.OpenAI.Extension;
 using FluentAssertions;
 
 public partial class Example07_Dynamic_GroupChat_Calculate_Fibonacci
@@ -138,7 +139,7 @@ public static async Task<IAgent> CreateReviewerAgentAsync()
             name: "code_reviewer",
             systemMessage: @"You review code block from coder",
             config: gpt3Config,
-            functions: [functions.ReviewCodeBlockFunction],
+            functions: [functions.ReviewCodeBlockFunctionContract.ToOpenAIFunctionDefinition()],
             functionMap: new Dictionary<string, Func<string, Task<string>>>()
             {
                 { nameof(ReviewCodeBlock), functions.ReviewCodeBlockWrapper },

dotnet/sample/AutoGen.BasicSamples/Example09_LMStudio_FunctionCall.cs

@@ -5,6 +5,7 @@
 using System.Text.Json.Serialization;
 using AutoGen.Core;
 using AutoGen.LMStudio;
+using AutoGen.OpenAI.Extension;
 using Azure.AI.OpenAI;
 
 namespace AutoGen.BasicSample;
@@ -69,8 +70,8 @@ public static async Task RunAsync()
         // And ask agent to response in function call object format using few-shot example
         object[] functionList =
             [
-                SerializeFunctionDefinition(instance.GetWeatherFunction),
-                SerializeFunctionDefinition(instance.GoogleSearchFunction)
+                SerializeFunctionDefinition(instance.GetWeatherFunctionContract.ToOpenAIFunctionDefinition()),
+                SerializeFunctionDefinition(instance.GetWeatherFunctionContract.ToOpenAIFunctionDefinition())
             ];
         var functionListString = JsonSerializer.Serialize(functionList, new JsonSerializerOptions { WriteIndented = true });
         var lmAgent = new LMStudioAgent(
@@ -98,12 +99,12 @@ You are a helpful AI assistant
                     {
                         var arguments = JsonSerializer.Serialize(functionCall.Arguments);
                         // invoke function wrapper
-                        if (functionCall.Name == instance.GetWeatherFunction.Name)
+                        if (functionCall.Name == instance.GetWeatherFunctionContract.Name)
                         {
                             var result = await instance.GetWeatherWrapper(arguments);
                             return new TextMessage(Role.Assistant, result);
                         }
-                        else if (functionCall.Name == instance.GoogleSearchFunction.Name)
+                        else if (functionCall.Name == instance.GetWeatherFunctionContract.Name)
                         {
                             var result = await instance.GoogleSearchWrapper(arguments);
                             return new TextMessage(Role.Assistant, result);

dotnet/src/AutoGen.Core/Function/FunctionAttribute.cs

@@ -35,7 +35,7 @@ public class FunctionContract
     /// <summary>
     /// The name of the function.
     /// </summary>
-    public string? Name { get; set; }
+    public string Name { get; set; } = null!;
 
     /// <summary>
     /// The description of the function.