code: def _pywrap_tensorflow():
    
    try:
      from tensorboard.compat import notf  # pylint: disable=g-import-not-at-top
    except ImportError:
      try:
        from tensorflow.python import pywrap_tensorflow  # pylint: disable=g-import-not-at-top
        return pywrap_tensorflow
      except ImportError:
        pass
    from tensorboard.compat.tensorflow_stub import pywrap_tensorflow  # pylint: disable=g-import-not-at-top
    return pywrap_tensorflow
docs: Provide pywrap_tensorflow access in TensorBoard.
  
    pywrap_tensorflow cannot be accessed from tf.python.pywrap_tensorflow
    and needs to be imported using
    `from tensorflow.python import pywrap_tensorflow`. Therefore, we provide
    a separate accessor function for it here.
  
    NOTE: pywrap_tensorflow is not part of TensorFlow API and this
    dependency will go away soon.
  
    Returns:
      pywrap_tensorflow import, if available.
  
    Raises:
      ImportError: if we couldn't import pywrap_tensorflow.