code: def tearDown(self):
      if hasattr(torch.ops, self.test_ns):
          delattr(torch.ops, self.test_ns)
      if hasattr(self, "lib"):
          del self.lib.m
          del self.lib
  
imports: import contextlib
  import warnings
  import numpy
  import torch
  from torch.library import Library
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TestCase
label_desc: Use image node_id 1 for calling the TestAutogradFallback obj's underlying member method code with example usage: obj.tearDown() without return types