message: Add python wrapper for unique_with_counts
  to call gen_array_ops._unique_with_counts
diff: @@ -1319,6 +1319,18 @@ def unique(x, out_idx=dtypes.int32, name=None):
  unique.__doc__ = gen_array_ops._unique.__doc__
  +@tf_export("unique_with_counts")
  +def unique_with_counts(x, out_idx=dtypes.int32, name=None):
  + # TODO(yongtang): switch to v2 once API deprecation
  + # period (3 weeks) pass.
  + # TODO(yongtang): The documentation should also
  + # be updated when switch to v2.
  + return gen_array_ops._unique_with_counts(x, out_idx, name)
  +
  +
  +unique_with_counts.__doc__ = gen_array_ops._unique_with_counts.__doc__
  +
  +
  @tf_export("split")
  def split(value, num_or_size_splits, axis=0, num=None, name="split"):
  """Splits a tensor into sub tensors.
  