code: def __repr__(self):
      return self.__str__()
  
imports: import json
  import typing
  from logging import getLogger
  from fate.arch.federation.api import PartyMeta
  from fate.arch.federation.backends.osx import osx_pb2
  from fate.arch.federation.message_queue import MessageQueueBasedFederation
  from ._mq_channel import MQChannel
label_desc: Use image node_id 3 for calling the MQ obj's underlying member method code with example usage: obj.__repr__() and returns: self