Added sample showing how to do cancellations (#48)

* Added sample showing how to do cancellations

* fixed a bug

examples/Chat/Example01_SimpleChat_Cancellations.cs

@@ -0,0 +1,40 @@
+using NUnit.Framework;
+using OpenAI.Chat;
+using System;
+using System.ClientModel;
+using System.ClientModel.Primitives;
+using System.Threading;
+
+namespace OpenAI.Examples;
+
+public partial class ChatExamples
+{
+ [Test]
+ public void Example01_SimpleChat_Cancellations()
+ {
+ ChatClient client = new(model: "gpt-4o", Environment.GetEnvironmentVariable("OPENAI_API_KEY"));
+
+ CancellationTokenSource ct = new CancellationTokenSource();
+ RequestOptions options = new() { CancellationToken = ct.Token };
+
+ ChatMessage message = ChatMessage.CreateUserMessage("Say 'this is a test.'");
+ var body = new {
+ model = "gpt-4o",
+ messages = new[] { 
+ new
+ {
+ role = "user",
+ content = "Say \u0027this is a test.\u0027"
+ }
+ }
+ };
+
+ BinaryData json = BinaryData.FromObjectAsJson(body);
+ ClientResult result = client.CompleteChat(BinaryContent.Create(json), options);
+
+ // The following code will be simplified in the future.
+ var wireFormat = new ModelReaderWriterOptions("W");
+ ChatCompletion completion = ModelReaderWriter.Read<ChatCompletion>(result.GetRawResponse().Content, wireFormat);
+ Console.WriteLine($"[ASSISTANT]: {completion}");
+ }
+}