code: def setUp(self):
      super().setUp()
      self._spawn_processes()
  
file_path: pytorch/test/distributed/test_collective_utils.py
imports: from unittest import mock
  import torch.distributed
  from torch.distributed.collective_utils import all_gather, broadcast
  from torch.testing._internal.common_distributed import MultiProcessTestCase
label_desc: Use image node_id 1 for calling the TestCollectiveUtils obj's underlying member method code with example usage: obj.setUp() without return types