code: def tearDownClass(cls):
      super().tearDownClass()
      shutil.rmtree(cls._tmpdir)
  
imports: import ast
  import os
  import re
  import shutil
  import tempfile
  import unittest
  from unittest import mock
  import torch
  from accelerate.test_utils.examples import compare_against_test
  from accelerate.test_utils.testing import TempDirTestCase, require_trackers, run_command, slow
  from accelerate.utils import write_basic_config
label_desc: Use image node_id 2 for calling the FeatureExamplesTests obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types