class_docstr: Uniquely identify
code: def __hash__(self):
      return (self.role, self.party_id).__hash__()
  
file_path: FATE/python/fate/arch/federation/message_queue/_parties.py
label_desc: Use image node_id 2 for calling the Party obj's underlying member method code with example usage: obj.__hash__() and returns: self,  self