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Interfaces/IXAiServiceControllerBase.cs

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+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+
+namespace xAiService.Interfaces
+{
+    public interface IXAiServiceControllerBase
+    {
+        Task<ActionResult<string>> Ask(
+            [FromQuery] string prompt,
+            CancellationToken cancellationToken = default
+        );
+    }
+}