code: def test_utils_base():
      class Test(utils.LockBase):
          pass
  
imports: from __future__ import print_function
  from __future__ import with_statement
  import os
  import dataclasses
  import multiprocessing
  import time
  import typing
  import pytest
  import portalocker
  from portalocker import utils
  from portalocker import LockFlags
label_desc: Use image node_id 2 for calling a global function with example usage: test_utils_base() without return types