Inform the policy to lease this message continually.

        .. note::
            This method is called by the constructor, and you should never
            need to call it manually.

def lease(self):
        """Inform the policy to lease this message continually.

        .. note::
            This method is called by the constructor, and you should never
            need to call it manually.
        """
        self._request_queue.put(
            requests.LeaseRequest(ack_id=self._ack_id, byte_size=self.size)
        )