chore: import upstream snapshot with attribution

dotnet/samples/03-workflows/Declarative/ConfirmInput/Program.cs

@@ -0,0 +1,39 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using Microsoft.Extensions.Configuration;
+using Shared.Workflows;
+
+namespace Demo.Workflows.Declarative.ConfirmInput;
+
+/// <summary>
+/// Demonstrate how to use the question action to request user input
+/// and confirm it matches the original input.
+/// </summary>
+/// <remarks>
+/// See the README.md file in the parent folder (../README.md) for detailed
+/// information about the configuration required to run this sample.
+/// </remarks>
+internal sealed class Program
+{
+    public static async Task Main(string[] args)
+    {
+        // Initialize configuration
+        IConfiguration configuration = Application.InitializeConfig();
+        Uri foundryEndpoint = new(configuration.GetValue(Application.Settings.FoundryEndpoint));
+
+        // Get input from command line or console
+        string workflowInput = Application.GetInput(args);
+
+        // Create the workflow factory.  This class demonstrates how to initialize a
+        // declarative workflow from a YAML file. Once the workflow is created, it
+        // can be executed just like any regular workflow.
+        WorkflowFactory workflowFactory = new("ConfirmInput.yaml", foundryEndpoint);
+
+        // Execute the workflow:  The WorkflowRunner demonstrates how to execute
+        // a workflow, handle the workflow events, and providing external input.
+        // This also includes the ability to checkpoint workflow state and how to
+        // resume execution.
+        WorkflowRunner runner = new();
+        await runner.ExecuteAsync(workflowFactory.CreateWorkflow, workflowInput);
+    }
+}