code: def tearDownClass(cls):
      cls.cache_dir_patch.stop()
      cls.tmpdir.cleanup()
  
imports: import functools
  import pickle
  import tempfile
  import unittest
  from unittest.mock import patch
  import torch
  from torch._dynamo.test_case import run_tests, TestCase
  from torch._dynamo.utils import counters
  from torch._inductor import config
  from torch._inductor.codecache import AsyncCompile, FxGraphCachePickler, FxGraphHashDetails, TensorMetadata, TensorMetadataAndValues
  from torch.testing._internal.common_cuda import SM80OrLater
  from torch.testing._internal.common_device_type import largeTensorTest
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize
  from torch.testing._internal.inductor_utils import HAS_CUDA
  from torch.utils._triton import has_triton
label_desc: Use image node_id 2 for calling the TestFxGraphCache obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types