message: Deprecate `graph_parents` init arg and property in LinearOperator.  These were only used for `values` kwarg in name_scope, and therefore not needed in TF2.
diff: @@ -37,6 +37,7 @@ from tensorflow.python.ops.linalg import linalg_impl as linalg
  from tensorflow.python.ops.linalg import linear_operator_algebra
  from tensorflow.python.ops.linalg import linear_operator_util
  from tensorflow.python.platform import tf_logging as logging
  +from tensorflow.python.util import deprecation
  from tensorflow.python.util import dispatch
  from tensorflow.python.util.tf_export import tf_export
  @@ -147,6 +148,8 @@ class LinearOperator(module.Module):
  way.
  """
  + @deprecation.deprecated_args(None, "Do not pass `graph_parents`. They will "
  + " no longer be used.", "graph_parents")
  def __init__(self,
  dtype,
  graph_parents=None,
  @@ -163,8 +166,8 @@ class LinearOperator(module.Module):
  Args:
  dtype: The type of the this `LinearOperator`. Arguments to `matmul` and
  `solve` will have to be this type.
  - graph_parents: Python list of graph prerequisites of this `LinearOperator`
  - Typically tensors that are passed during initialization.
  + graph_parents: (Deprecated) Python list of graph prerequisites of this
  + `LinearOperator` Typically tensors that are passed during initialization
  is_non_singular: Expect that this operator is non-singular.
  is_self_adjoint: Expect that this operator is equal to its hermitian
  transpose. If `dtype` is real, this is equivalent to being symmetric.
  @@ -230,6 +233,7 @@ class LinearOperator(module.Module):
  return self._name
  @property
  + @deprecation.deprecated(None, "Do not call `graph_parents`.")
  def graph_parents(self):
  """List of graph dependencies of this `LinearOperator`."""
  return self._graph_parents
  