text: # Copyright 2019 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.
  # ==============================================================================
  """TraceMe allows the profiler to trace python events.
  
  Usage:
      with profiler.TraceMe('name'):
        ...
  """
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  from tensorflow.python import pywrap_tensorflow
  
  
  class TraceMe(object):
    """Context manager that generates a trace event in the profiler."""
  
    def __init__(self, name):
      self._traceme = pywrap_tensorflow.PythonTraceMe(name)
  
    def __enter__(self):
      self._traceme.Enter()
  
    def __exit__(self, exc_type, exc_val, exc_tb):
      self._traceme.Exit()
  