Method cancel

examples/server/server.py:15595–15605

()

        request.on_error = on_error

        def cancel() -> None:
            if cancelled.is_set():
                return
            cancelled.set()
            try:
                def cancel_request() -> None:
                    self.scheduler.cancel(request.id)

                self.enqueue(cancel_request)
            except RuntimeError:
                pass

        def stream() -> CompletionStream:
            try: