old_contents: # Copyright 2022 The TensorFlow Authors. All Rights Reserved.
  #
  # 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.
  # ==============================================================================
  """Keras' DTensor library."""
  
  _DTENSOR_API_ENABLED = False
  
  
  # Conditional import the dtensor API, since it is currently broken in OSS.
  if _DTENSOR_API_ENABLED:
    # pylint: disable=g-direct-tensorflow-import, g-import-not-at-top
    from tensorflow.dtensor import python as dtensor_api
  else:
    # Leave it with a placeholder, so that the import line from other python file
    # will not break.
    dtensor_api = None
  
  
  
new_contents: # Copyright 2022 The TensorFlow Authors. All Rights Reserved.
  #
  # 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.
  # ==============================================================================
  """Keras' DTensor library."""
  
  _DTENSOR_API_ENABLED = False
  
  
  # Conditional import the dtensor API, since it is currently broken in OSS.
  if _DTENSOR_API_ENABLED:
    from tensorflow.compat.v2.experimental import dtensor as dtensor_api  # pylint: disable=g-import-not-at-top
  else:
    # Leave it with a placeholder, so that the import line from other python file
    # will not break.
    dtensor_api = None
  
subject: Change keras to use dtensor public API.