message: Use LazyLoader to import network in save.py
diff: @@ -22,13 +22,17 @@ import sys
  import six
  -from tensorflow.python.keras.engine import network
  from tensorflow.python.keras.saving import hdf5_format
  from tensorflow.python.keras.saving.saved_model import load as saved_model_load
  from tensorflow.python.keras.saving.saved_model import save as saved_model_save
  from tensorflow.python.saved_model import loader_impl
  +from tensroflow.python.util.lazy_loader import LazyLoader
  from tensorflow.python.util.tf_export import keras_export
  +network = LazyLoader(
  + 'network', globals(),
  + 'tensroflow.python.keras.engine.network')
  +
  # pylint: disable=g-import-not-at-top
  if sys.version_info >= (3, 4):
  import pathlib
  