code: def assertDirectoryEqual(self, path, expected_spec) -> None:
      self.assertEqual(self.extractDirectorySpec(path), expected_spec)
  
imports: import os
  from unittest import mock
  import tensorflow
  from tfx.dsl.io import fileio
  from tfx.utils import io_utils
  from tensorflow.python.lib.io import file_io
label_desc: Use image node_id 5 for calling the IoUtilsTest obj's underlying member method code with example usage: obj.assertDirectoryEqual(path, expected_spec) without return types