message: Switch from python native io to gFile.
diff: @@ -54,6 +54,7 @@ from tensorflow.python.lib.io import file_io
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import summary_ops_v2
  +from tensorflow.python.platform import gfile
  from tensorflow.python.platform import tf_logging as logging
  from tensorflow.python.profiler import profiler_v2 as profiler
  from tensorflow.python.saved_model import save_options as save_options_lib
  @@ -2135,7 +2136,7 @@ class TensorBoard(Callback, version_utils.TensorBoardVersionSelector):
  config_pbtxt = text_format.MessageToString(config)
  path = os.path.join(self._log_write_dir, 'projector_config.pbtxt')
  - with open(path, 'w') as f:
  + with gfile.Open(path, 'w') as f:
  f.write(config_pbtxt)
  def _push_writer(self, writer, step):
  