 request=request)
                    # This HTTP response won&#39;t be sent to Slack API servers.
                    return BoltResponse(status=200)
                else:
                    continue
            else:
                self._start_lazy_function(lazy_func, request)

        # await for the completion of ack() in the async listener execution
        while ack.response is None and time.time() - starting_time &lt;= listener.ack_timeout:
            time.sleep(0.01)

        if response is None 