code: def test_trace_source_funcname(self, records):
      def fn1():
          def fn2():
              if True:
                  return [torch.ones(3, 3) for _ in range(5)]
              return None
  
          return fn2()
  
      fn_opt = torch._dynamo.optimize("eager")(fn1)
      fn_opt()
  
      found_funcname = False
      for record in records:
          msg = record.getMessage()
          if "<listcomp>" in msg and "fn1.fn2" in msg:
              found_funcname = True
  
      self.assertTrue(found_funcname)
  
imports: import atexit
  import contextlib
  import functools
  import logging
  import os
  import re
  import unittest.mock
  import torch
  import torch._dynamo.test_case
  import torch._dynamo.testing
  import torch.distributed
  from torch._dynamo.testing import skipIfNotPy311
  from torch.nn.parallel import DistributedDataParallel
  from torch.testing._internal.common_utils import find_free_port, munge_exc
  from torch.testing._internal.inductor_utils import HAS_CUDA
  from torch.testing._internal.logging_utils import LoggingTestCase, make_logging_test, make_settings_test
label_desc: Use image node_id 20 for calling the LoggingTests obj's underlying member method code with example usage: obj.test_trace_source_funcname(records) and returns: fn2, None, unknown