message: Update docstring of raises for tf.clip_by_norm
  This fix updates docstring of Raises for tf.clip_by_norm.
  Thhis fix fixes 29264.
diff: @@ -156,6 +156,11 @@ def clip_by_norm(t, clip_norm, axes=None, name=None):
  Returns:
  A clipped `Tensor` or `IndexedSlices`.
  +
  + Raises:
  + ValueError: If the clip_norm tensor is not a 0-D scalar tensor.
  + TypeError: If dtype of the input is not a floating point or
  + complex type.
  """
  with ops.name_scope(name, "clip_by_norm", [t, clip_norm]) as name:
  values = ops.convert_to_tensor(
  