text: public virtual RespondActivityTaskCanceledResponse RespondActivityTaskCanceled(RespondActivityTaskCanceledRequest request){var options = new InvokeOptions();options.RequestMarshaller = RespondActivityTaskCanceledRequestMarshaller.Instance;options.ResponseUnmarshaller = RespondActivityTaskCanceledResponseUnmarshaller.Instance;return Invoke<RespondActivityTaskCanceledResponse>(request, options);}