old_contents: # Copyright 2016 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 utilities."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  from tensorflow.python.keras._impl.keras.utils.data_utils import GeneratorEnqueuer
  from tensorflow.python.keras._impl.keras.utils.data_utils import get_file
  from tensorflow.python.keras._impl.keras.utils.data_utils import Sequence
  from tensorflow.python.keras._impl.keras.utils.data_utils import SequenceEnqueuer
  from tensorflow.python.keras._impl.keras.utils.generic_utils import custom_object_scope
  from tensorflow.python.keras._impl.keras.utils.generic_utils import CustomObjectScope
  from tensorflow.python.keras._impl.keras.utils.generic_utils import deserialize_keras_object
  from tensorflow.python.keras._impl.keras.utils.generic_utils import get_custom_objects
  from tensorflow.python.keras._impl.keras.utils.generic_utils import Progbar
  from tensorflow.python.keras._impl.keras.utils.generic_utils import serialize_keras_object
  from tensorflow.python.keras._impl.keras.utils.io_utils import HDF5Matrix
  from tensorflow.python.keras._impl.keras.utils.layer_utils import convert_all_kernels_in_model
  from tensorflow.python.keras._impl.keras.utils.multi_gpu_utils import multi_gpu_model
  from tensorflow.python.keras._impl.keras.utils.np_utils import normalize
  from tensorflow.python.keras._impl.keras.utils.np_utils import to_categorical
  from tensorflow.python.keras._impl.keras.utils.vis_utils import plot_model
  
  del absolute_import
  del division
  del print_function
  
new_contents: # Copyright 2016 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 utilities."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  from tensorflow.python.keras._impl.keras.utils.data_utils import GeneratorEnqueuer
  from tensorflow.python.keras._impl.keras.utils.data_utils import get_file
  from tensorflow.python.keras._impl.keras.utils.data_utils import OrderedEnqueuer
  from tensorflow.python.keras._impl.keras.utils.data_utils import Sequence
  from tensorflow.python.keras._impl.keras.utils.data_utils import SequenceEnqueuer
  from tensorflow.python.keras._impl.keras.utils.generic_utils import custom_object_scope
  from tensorflow.python.keras._impl.keras.utils.generic_utils import CustomObjectScope
  from tensorflow.python.keras._impl.keras.utils.generic_utils import deserialize_keras_object
  from tensorflow.python.keras._impl.keras.utils.generic_utils import get_custom_objects
  from tensorflow.python.keras._impl.keras.utils.generic_utils import Progbar
  from tensorflow.python.keras._impl.keras.utils.generic_utils import serialize_keras_object
  from tensorflow.python.keras._impl.keras.utils.io_utils import HDF5Matrix
  from tensorflow.python.keras._impl.keras.utils.layer_utils import convert_all_kernels_in_model
  from tensorflow.python.keras._impl.keras.utils.multi_gpu_utils import multi_gpu_model
  from tensorflow.python.keras._impl.keras.utils.np_utils import normalize
  from tensorflow.python.keras._impl.keras.utils.np_utils import to_categorical
  from tensorflow.python.keras._impl.keras.utils.vis_utils import plot_model
  
  del absolute_import
  del division
  del print_function
  
subject: Enable OrderedEnqueuer from keras in tf.keras. (#19183)