code: def test_party(self):
      from parlai.scripts.party import Party
  
      Party.main(seconds=0.01)
  
imports: import os
  import unittest
  from parlai.core.message import Message
  from parlai.core.mutators import MessageMutator, register_mutator
  import parlai.utils.testing
label_desc: Use image node_id 1 for calling the TestParty obj's underlying member method code with example usage: obj.test_party() without return types