code: def __delete__(self, instance):  # pragma: no cover
      instance.release()
  
imports: import os
  import time
  import atexit
  import tempfile
  import contextlib
  from .None import exceptions
  from .None import constants
  from .None import portalocker
label_desc: Use image node_id 9 for calling the Lock obj's underlying member method code with example usage: obj.__delete__(instance) without return types