class_docstr: Helper class to make it easier to manage caching in `Bijector`.
class_docstr_tok: ["Helper","class","to","make","it","easier","to","manage","caching","in","`","Bijector","`","."]
docstr: Returns key used for caching X=g^{-1}(Y).
code: def y_key(self):
      """Returns key used for caching X=g^{-1}(Y)."""
      return (object_identity.Reference(self.y),) + self._deep_tuple(
          tuple(sorted(self.kwargs.items()))
      )
  
imports: import abc
  import collections
  import contextlib
  import re
  import numpy
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import tensor_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import check_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops.distributions import util
  from tensorflow.python.util import object_identity
label_desc: Use image node_id 3 for calling the _Mapping obj's underlying member method code with example usage: obj.y_key() and returns: unknown