code: def test_fix_w_replace_bn_with_in(self):
      all_modules_before = self.original_model.modules()
      self.assertTrue(
          all(
              [
                  not isinstance(module, nn.InstanceNorm2d)
                  for module in all_modules_before
              ]
          )
      )
  
      fixed_model = ModuleValidator.fix(
          self.original_model, replace_bn_with_in=True
      )
      all_modules_after = fixed_model.modules()
      self.assertTrue(
          any(
              [
                  isinstance(module, nn.InstanceNorm2d)
                  for module in all_modules_after
              ]
          )
      )
  
imports: import unittest
  from collections import OrderedDict
  import torch
  import torch.nn
  from opacus.validators.errors import UnsupportedModuleError
  from opacus.validators.module_validator import ModuleValidator
  from torchvision.models import mobilenet_v3_small
label_desc: Use image node_id 10 for calling the ModuleValidator_test obj's underlying member method code with example usage: obj.test_fix_w_replace_bn_with_in() without return types