code: def test_trainer_tpu(self):
      import xla_spawn
  
      testargs = """
              ./tests/test_trainer_tpu.py
              --num_cores=8
              ./tests/test_trainer_tpu.py
              """.split()
      with patch.object(sys, "argv", testargs):
          xla_spawn.main()
  
file_path: H2O/h2o_flexgen/benchmark/third_party/transformers/examples/pytorch/test_xla_examples.py
imports: import json
  import logging
  import os
  import sys
  from time import time
  from unittest.mock import patch
  from transformers.testing_utils import TestCasePlus, require_torch_tpu
label_desc: Use image node_id 2 for calling the TorchXLAExamplesTests obj's underlying member method code with example usage: obj.test_trainer_tpu() without return types