'Deleting existing output directory: %s .',
        output_directory,
    )
    file_io.delete_recursively_v2(output_directory)

  file_io.recursive_create_dir_v2(output_directory)


def _validate_signatures(
    signature_def_map: _SignatureDefMap, exported_graph: ops.Graph
) -> _SignatureDefMap:
  """Validates if the tensor names in signatures are consistent with the graph.