code: def state_dict(self) -> Dict[str, Any]:
      self.state_dict_call_count += 1
      return {}
  
imports: import math
  import os
  import shutil
  import tempfile
  import unittest
  from typing import Any, Dict, Iterator, List
  from unittest import mock
  from unittest.mock import MagicMock, patch
  import torch
  from torch import nn
  from torch.utils.data import DataLoader
  from torchsnapshot.test_utils import assert_state_dict_eq, check_state_dict_eq
  from torchtnt.framework._test_utils import DummyAutoUnit, DummyTrainUnit, generate_random_dataloader, get_dummy_train_state
  from torchtnt.framework.callbacks.checkpointer_types import KnobOptions, RestoreOptions
  from torchtnt.framework.callbacks.torchsnapshot_saver import _override_knobs, TorchSnapshotSaver
  from torchtnt.framework.train import train
  from torchtnt.utils.distributed import get_global_rank
  from torchtnt.utils.env import seed
  from torchtnt.utils.test_utils import spawn_multi_process
label_desc: Use image node_id 2 for calling the DummyStatefulDataLoader obj's underlying member method code with example usage: obj.state_dict() and returns: dict