code: def setUp(self):
      super().setUp()
      os.environ["WORLD_SIZE"] = str(self.world_size)
      os.environ["BACKEND"] = BACKEND
      self._spawn_processes()
  
imports: import json
  import logging
  import os
  import re
  import sys
  import time
  from functools import partial, wraps
  import torch
  import torch.distributed
  from torch.distributed.c10d_logger import _c10d_logger, _exception_logger, _time_logger
  from torch.testing._internal.common_distributed import MultiProcessTestCase, TEST_SKIPS
  from torch.testing._internal.common_utils import run_tests, TEST_WITH_DEV_DBG_ASAN
label_desc: Use image node_id 1 for calling the C10dErrorLoggerTest obj's underlying member method code with example usage: obj.setUp() without return types