return graph_def


def create_empty_output_dir(
    output_directory: str, overwrite: bool = True
) -> None:
  """Creates the `output_directory`.

  If `output_directory` already exists, it recursively deletes all contents
  inside the directory.

  Also creates the parent & intermediate directories.

  Args:
    output_directory: Output directory.

      argument and QuantizationOptions.
    ValueError: When the specified quantization method is not yet supported.
  """
  _verify_output_dir(output_directory, overwrite_output_directory)

  # Set default values for None arguments.
  if output_directory is None:
    output_directory = tempfile.mkdtemp()

  if quantization_options is None:
    quantization_options = _QuantizationOptions()

      ):
        converted_model = quantize_model.quantize(
            input_saved_model_path,
            output_directory,
            quantization_options,
        )
      return

    else:
      converted_model = quantize_model.quantize(
          input_saved_model_path,
          output_directory,
          quantization_options,
      )

    self.assertIsNotNone(converted_model)