code: def _Transform__getstate__(self):
      super_ = super(torch.distributions.transforms.Transform, self)
      state = getattr(super_, "__getstate__", self.__dict__.copy)()
      for k, v in state.items():
          if isinstance(v, weakref.ref):
              state[k] = None
      return state
  
file_path: pyro/pyro/distributions/torch_patch.py
imports: import functools
  import math
  import warnings
  import weakref
  import torch
label_desc: Use image node_id 2 for calling a global function with example usage: _Transform__getstate__() and returns: state