code: def track_provenance(x, provenance: frozenset):
      """
      Adds provenance info to the :class:`torch.Tensor` leaves of a data structure.
  
      :param x: an object to add provenence info to.
      :param frozenset provenance: A provenence set.
      :returns: A provenence-tracking version of ``x``.
      """
      return x
  
file_path: pyro/pyro/ops/provenance.py
imports: from functools import partial, singledispatch
  from typing import Tuple
  import torch
  from torch.utils._pytree import tree_flatten, tree_map, tree_unflatten
label_desc: Use image node_id 1 for calling a global function with example usage: track_provenance(x, provenance) and returns: x