code: def test_fix_device(self):
      orig_model_device = next(self.original_model.parameters()).device
      if torch.cuda.is_available():
          self.original_model.to(torch.device("cuda:0"))
      fixed_model = ModuleValidator.fix(self.original_model)
      if torch.cuda.is_available():
          self.assertTrue(next(fixed_model.parameters()).is_cuda)
      self.original_model.to(orig_model_device)
  
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 9 for calling the ModuleValidator_test obj's underlying member method code with example usage: obj.test_fix_device() without return types