code: def __contains__(self, key):
      try:
          wr = self.ref_type(key)  # CHANGED
      except TypeError:
          return False
      return wr in self.data
  
imports: from __future__ import annotations
  import weakref
  from weakref import ref
  from _weakrefset import _IterationGuard
  from collections.abc import MutableMapping, Mapping
  from torch import Tensor
  import collections.abc
label_desc: Use image node_id 12 for calling the WeakIdKeyDictionary obj's underlying member method code with example usage: obj.__contains__(key) and returns: unknown, False