code: def tearDown(self):
      shutil.rmtree(self.test_dir)
  
imports: import filecmp
  import json
  import os
  import shutil
  import tempfile
  import unittest
  from unittest.mock import patch
  from torch.distributed.elastic.multiprocessing.errors.error_handler import ErrorHandler
  from torch.distributed.elastic.multiprocessing.errors.handlers import get_error_handler
label_desc: Use image node_id 2 for calling the ErrorHandlerTest obj's underlying member method code with example usage: obj.tearDown() without return types