code: def test_process_failure_no_error_file(self):
      pf = self.failure_without_error_file(exitcode=138)
      self.assertEqual("<N/A>", pf.signal_name())
      self.assertEqual("<N/A>", pf.error_file)
      self.assertEqual(
          "To enable traceback see: https://pytorch.org/docs/stable/elastic/errors.html",
          pf.message,
      )
  
imports: import json
  import os
  import shutil
  import signal
  import tempfile
  import unittest
  from unittest import mock
  from torch.distributed.elastic.multiprocessing.errors import ChildFailedError, ProcessFailure, record
  from torch.distributed.elastic.multiprocessing.errors.error_handler import ErrorHandler
label_desc: Use image node_id 10 for calling the ApiTest obj's underlying member method code with example usage: obj.test_process_failure_no_error_file() without return types