chore: import upstream snapshot with attribution

dotnet/samples/GettingStartedWithAgents/CopilotStudioAgent/Step01_CopilotStudioAgent.cs

@@ -0,0 +1,37 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using Microsoft.Agents.CopilotStudio.Client;
+using Microsoft.SemanticKernel;
+using Microsoft.SemanticKernel.Agents.Copilot;
+using Microsoft.SemanticKernel.ChatCompletion;
+
+namespace GettingStarted.CopilotStudioAgents;
+
+/// <summary>
+/// Demonstrates how to use the <see cref="CopilotStudioAgent"/> to interact with a Copilot Agent service.
+/// This sample shows how to create a CopilotStudioAgent, send user messages, and display the agent's responses.
+/// </summary>
+public sealed class Step01_CopilotStudioAgent(ITestOutputHelper output) : BaseAgentsTest(output)
+{
+    [Fact]
+    public async Task UseCopilotStudioAgent()
+    {
+        CopilotStudioConnectionSettings settings = new(TestConfiguration.GetSection(nameof(CopilotStudioAgent)));
+        CopilotClient client = CopilotStudioAgent.CreateClient(settings);
+        CopilotStudioAgent agent = new(client);
+
+        await InvokeAgentAsync("Why is the sky blue?");
+        await InvokeAgentAsync("What is the speed of light?");
+
+        // Local function to invoke agent and display the response.
+        async Task InvokeAgentAsync(string input)
+        {
+            Console.WriteLine($"\n# {AuthorRole.User}: {input}");
+
+            await foreach (ChatMessageContent response in agent.InvokeAsync(input))
+            {
+                WriteAgentChatMessage(response);
+            }
+        }
+    }
+}