code: def test_destroy_hooks(self):
      self.verification_with_bias.register_hooks()
      assert len(self.verification_with_bias._hook_handles) == 3
  
      for (
          name,
          module,
      ) in self.verification_with_bias.model.named_modules():
          assert module._forward_hooks
  
      self.verification_with_bias.destroy_hooks()
      assert len(self.verification_with_bias._hook_handles) == 0
  
      for (
          name,
          module,
      ) in self.verification_with_bias.model.named_modules():
          assert not module._forward_hooks
  
file_path: allennlp/tests/confidence_checks/normalization_bias_verification_test.py
imports: import torch
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.common.testing.confidence_check_test import FakeModelForTestingNormalizationBiasVerification
  from allennlp.confidence_checks.normalization_bias_verification import NormalizationBiasVerification
label_desc: Use image node_id 4 for calling the TestNormalizationBiasVerification obj's underlying member method code with example usage: obj.test_destroy_hooks() without return types