message: Deprecated cached_value Variable argument.
diff: @@ -45,6 +45,7 @@ from tensorflow.python.util import compat
  from tensorflow.python.util import object_identity
  from tensorflow.python.util import tf_should_use
  from tensorflow.python.util.deprecation import deprecated
  +from tensorflow.python.util.deprecation import deprecated_args
  from tensorflow.python.util.tf_export import tf_export
  @@ -357,6 +358,12 @@ class Variable(six.with_metaclass(VariableMetaclass, trackable.Trackable)):
  See the `tf.function` documentation for details.
  """
  + @deprecated_args(
  + None,
  + "A variable's value can be manually cached by calling "
  + "tf.Variable.read_value() under a tf.device scope. The caching_device "
  + "argument does not work properly.",
  + "caching_device")
  def __init__(self,
  initial_value=None,
  trainable=None,
  