How to use the funcx.endpoint.utils.MDP function in funcx

def reconnect_to_broker(self):
        """Connect or reconnect to broker"""
        if self.worker:
            self.poller.unregister(self.worker)
            self.worker.close()
        self.worker = self.ctx.socket(zmq.DEALER)
        self.worker.linger = 0
        self.worker.connect(self.broker)
        self.poller.register(self.worker, zmq.POLLIN)
        if self.verbose:
            logging.info("I: connecting to broker at %s…", self.broker)

        # Register service with broker
        self.send_to_broker(MDP.W_READY, pickle.dumps(self.service), [])

        # If liveness hits zero, queue is considered disconnected
        self.liveness = self.HEARTBEAT_LIVENESS
        self.heartbeat_at = time.time() + 1e-3 * self.heartbeat

def send_to_broker(self, command, option=None, msg=None):
        """Send message to broker.

        If no msg is provided, creates one internally
        """
        if msg is None:
            msg = []
        elif not isinstance(msg, list):
            msg = [msg]

        if option:
            msg = [option] + msg

        msg = [b'', MDP.W_WORKER, command] + msg
        if self.verbose:
            logging.info("I: sending %s to broker", command)
            dump(msg)
        self.worker.send_multipart(msg)

dump(msg)

            else:
                self.liveness -= 1
                if self.liveness == 0:
                    if self.verbose:
                        logging.warn("W: disconnected from broker - retrying…")
                    try:
                        time.sleep(1e-3*self.reconnect)
                    except KeyboardInterrupt:
                        break
                    self.reconnect_to_broker()

            # Send HEARTBEAT if it's time
            if time.time() > self.heartbeat_at:
                self.send_to_broker(MDP.W_HEARTBEAT)
                self.heartbeat_at = time.time() + 1e-3*self.heartbeat

        #logging.warn("W: interrupt received, killing worker…")
        return None