code: def test_replace_dunder_methods_restore_methods():
      """This tests checks whether are all dunder methods restored to their original versions."""
  
      class Init(DataLoader):
          def __init__(self, *args, **kwargs):
              super().__init__(*args, **kwargs)
  
      class SetAttr(DataLoader):
          def __setattr__(self, *args):
              return super().__setattr__(*args)
  
      class DelAttr(DataLoader):
          def __delattr__(self, *args):
              return super().__delattr__(*args)
  
      class InitAndSetAttr(Init, SetAttr):
          pass
  
      class InitAndDelAttr(Init, DelAttr):
          pass
  
      class SetAttrAndDelAttr(SetAttr, DelAttr):
          pass
  
      class AllDunder(Init, SetAttr, DelAttr):
          pass
  
      before = {}
      for cls in (
          Init,
          SetAttr,
          DelAttr,
          InitAndSetAttr,
          InitAndDelAttr,
          SetAttrAndDelAttr,
          AllDunder,
      ):
          before[cls] = {
              "init": cls.__init__,
              "setattr": cls.__setattr__,
              "delattr": cls.__delattr__,
          }
  
      with _replace_dunder_methods(DataLoader, "dataset"):
          pass
  
      for cls in (
          Init,
          SetAttr,
          DelAttr,
          InitAndSetAttr,
          InitAndDelAttr,
          SetAttrAndDelAttr,
          AllDunder,
      ):
          assert before[cls] == {
              "init": cls.__init__,
              "setattr": cls.__setattr__,
              "delattr": cls.__delattr__,
          }
  
imports: import contextlib
  import os
  import random
  from unittest import mock
  from unittest.mock import Mock
  import lightning.fabric
  import numpy
  import pytest
  import torch
  from lightning.fabric.utilities.data import AttributeDict, _get_dataloader_init_args_and_kwargs, _replace_dunder_methods, _replace_value_in_saved_args, _set_sampler_epoch, _update_dataloader, _WrapAttrTag, has_iterable_dataset, has_len, suggested_max_num_workers
  from lightning.fabric.utilities.exceptions import MisconfigurationException
  from lightning_utilities.test.warning import no_warning_call
  from torch import Tensor
  from torch.utils.data import BatchSampler, DataLoader, RandomSampler
  from tests_fabric.helpers.models import RandomDataset, RandomIterableDataset
label_desc: Use image node_id 7 for calling a global function with example usage: test_replace_dunder_methods_restore_methods() and returns: super, super