code: def tearDown(self):
      teardown_imports()
      gc.collect()
  
file_path: mmf/tests/utils/test_configuration.py
imports: import gc
  import os
  import unittest
  from mmf.utils.configuration import Configuration, get_zoo_config
  from mmf.utils.env import setup_imports, teardown_imports
  from mmf.utils.general import get_mmf_root
  from tests.test_utils import dummy_args
label_desc: Use image node_id 2 for calling the TestUtilsConfiguration obj's underlying member method code with example usage: obj.tearDown() without return types