old_contents: # coding=utf-8
  # Copyright 2021 TF.Text Authors.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Tensorflow Text layers for Keras API."""
  
  from tensorflow.python.util.all_util import remove_undocumented
  
  # pylint: disable=wildcard-import
  from tensorflow_text.python.keras.layers.todense import *
  
  # Public symbols in the "tensorflow_text.layers" package.
  _allowed_symbols = [
      "ToDense",
  ]
  
  remove_undocumented(__name__, _allowed_symbols)
  
new_contents: # coding=utf-8
  # Copyright 2021 TF.Text Authors.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Tensorflow Text layers for Keras API."""
  
  from tensorflow.python.util.all_util import remove_undocumented
  
  # pylint: disable=wildcard-import
  from tensorflow_text.python.keras.layers.todense import *
  from tensorflow_text.python.keras.layers.tokenization_layers import *
  
  # Public symbols in the "tensorflow_text.layers" package.
  _allowed_symbols = [
      "ToDense",
      "UnicodeScriptTokenizer",
      "WhitespaceTokenizer",
      "WordpieceTokenizer",
  ]
  
  remove_undocumented(__name__, _allowed_symbols)
  
subject: Add missing symbols for tokenization layers