Update code-interpreter-samples.md

Switching to PersistentThreadMessage

Author: RobiladK

articles/ai-services/agents/how-to/tools/code-interpreter-samples.md

@@ -145,98 +145,98 @@ This ensures proper resource management and prevents unnecessary resource consum
 First, set up the configuration using `appsettings.json`, create a `PersistentAgentsClient`, and then create a `PersistentAgent` with the Code Interpreter tool enabled.
 
 ```csharp
-    using Azure;
-    using Azure.AI.Agents.Persistent;
-    using Azure.Identity;
-    using Microsoft.Extensions.Configuration;
-    using System.Diagnostics;
-    
-    IConfigurationRoot configuration = new ConfigurationBuilder()
-        .SetBasePath(AppContext.BaseDirectory)
-        .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
-        .Build();
-    
-    var projectEndpoint = configuration["ProjectEndpoint"];
-    var modelDeploymentName = configuration["ModelDeploymentName"];
-    
-    PersistentAgentsClient client = new(projectEndpoint, new DefaultAzureCredential());
-    
-    PersistentAgent agent = client.Administration.CreateAgent(
-        model: modelDeploymentName,
-        name: "My Friendly Test Agent",
-        instructions: "You politely help with math questions. Use the code interpreter tool when asked to visualize numbers.",
-        tools: [new CodeInterpreterToolDefinition()]
-    );
+using Azure;
+using Azure.AI.Agents.Persistent;
+using Azure.Identity;
+using Microsoft.Extensions.Configuration;
+using System.Diagnostics;
+
+IConfigurationRoot configuration = new ConfigurationBuilder()
+    .SetBasePath(AppContext.BaseDirectory)
+    .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
+    .Build();
+
+var projectEndpoint = configuration["ProjectEndpoint"];
+var modelDeploymentName = configuration["ModelDeploymentName"];
+
+PersistentAgentsClient client = new(projectEndpoint, new DefaultAzureCredential());
+
+PersistentAgent agent = client.Administration.CreateAgent(
+    model: modelDeploymentName,
+    name: "My Friendly Test Agent",
+    instructions: "You politely help with math questions. Use the code interpreter tool when asked to visualize numbers.",
+    tools: [new CodeInterpreterToolDefinition()]
+);
 ```
 
 ## Create a thread and add a message
 
 Next, create a `PersistentAgentThread` for the conversation and add the initial user message.
 
 ```csharp
-    PersistentAgentThread thread = client.Threads.CreateThread();
-    
-    client.Messages.CreateMessage(
-        thread.Id,
-        MessageRole.User,
-        "Hi, Agent! Draw a graph for a line with a slope of 4 and y-intercept of 9.");
+PersistentAgentThread thread = client.Threads.CreateThread();
+
+client.Messages.CreateMessage(
+    thread.Id,
+    MessageRole.User,
+    "Hi, Agent! Draw a graph for a line with a slope of 4 and y-intercept of 9.");
 ```
 
 ## Create and monitor a run
 
 Then, create a `ThreadRun` for the thread and agent. Poll the run's status until it completes or requires action.
 
 ```csharp
-    ThreadRun run = client.Runs.CreateRun(
-        thread.Id,
-        agent.Id,
-        additionalInstructions: "Please address the user as Jane Doe. The user has a premium account.");
-    
-    do
-    {
-        Thread.Sleep(TimeSpan.FromMilliseconds(500));
-        run = client.Runs.GetRun(thread.Id, run.Id);
-    }
-    while (run.Status == RunStatus.Queued
-        || run.Status == RunStatus.InProgress
-        || run.Status == RunStatus.RequiresAction);
+ThreadRun run = client.Runs.CreateRun(
+    thread.Id,
+    agent.Id,
+    additionalInstructions: "Please address the user as Jane Doe. The user has a premium account.");
+
+do
+{
+    Thread.Sleep(TimeSpan.FromMilliseconds(500));
+    run = client.Runs.GetRun(thread.Id, run.Id);
+}
+while (run.Status == RunStatus.Queued
+    || run.Status == RunStatus.InProgress
+    || run.Status == RunStatus.RequiresAction);
 ```
 
 ## Process the results and handle files
 
 Once the run is finished, retrieve all messages from the thread. Iterate through the messages to display text content and handle any generated image files by saving them locally and opening them.
 
 ```csharp
-    Pageable<ThreadMessage> messages = client.Messages.GetMessages(
-        threadId: thread.Id,
-        order: ListSortOrder.Ascending);
-    
-    foreach (ThreadMessage threadMessage in messages)
+Pageable<PersistentThreadMessage> messages = client.Messages.GetMessages(
+    threadId: thread.Id,
+    order: ListSortOrder.Ascending);
+
+foreach (PersistentThreadMessage threadMessage in messages)
+{
+    foreach (MessageContent content in threadMessage.ContentItems)
     {
-        foreach (MessageContent content in threadMessage.ContentItems)
+        switch (content)
         {
-            switch (content)
-            {
-                case MessageTextContent textItem:
-                    Console.WriteLine($"[{threadMessage.Role}]: {textItem.Text}");
-                    break;
-                case MessageImageFileContent imageFileContent:
-                    Console.WriteLine($"[{threadMessage.Role}]: Image content file ID = {imageFileContent.FileId}");
-                    BinaryData imageContent = client.Files.GetFileContent(imageFileContent.FileId);
-                    string tempFilePath = Path.Combine(AppContext.BaseDirectory, $"{Guid.NewGuid()}.png");
-                    File.WriteAllBytes(tempFilePath, imageContent.ToArray());
-                    client.Files.DeleteFile(imageFileContent.FileId);
-    
-                    ProcessStartInfo psi = new()
-                    {
-                        FileName = tempFilePath,
-                        UseShellExecute = true
-                    };
-                    Process.Start(psi);
-                    break;
-            }
+            case MessageTextContent textItem:
+                Console.WriteLine($"[{threadMessage.Role}]: {textItem.Text}");
+                break;
+            case MessageImageFileContent imageFileContent:
+                Console.WriteLine($"[{threadMessage.Role}]: Image content file ID = {imageFileContent.FileId}");
+                BinaryData imageContent = client.Files.GetFileContent(imageFileContent.FileId);
+                string tempFilePath = Path.Combine(AppContext.BaseDirectory, $"{Guid.NewGuid()}.png");
+                File.WriteAllBytes(tempFilePath, imageContent.ToArray());
+                client.Files.DeleteFile(imageFileContent.FileId);
+
+                ProcessStartInfo psi = new()
+                {
+                    FileName = tempFilePath,
+                    UseShellExecute = true
+                };
+                Process.Start(psi);
+                break;
         }
     }
+}
 ```
 
 ## Clean up resources