code: def __init__(self):
      self._event = threading.Event()
  
imports: import functools
  import threading
  from absl.testing import absltest
  import cloudpickle
  from launchpad import program
  from launchpad.launch import serialization
  from launchpad.nodes.python import node
label_desc: Use image node_id 1 to create a new NotSeriazableNode object from inherited base classes: python with example: obj = NotSeriazableNode()