code: def __next__(self) -> T_co:  # type: ignore[type-var]
      assert self._datapipe_iter is not None
      return next(self._datapipe_iter)
  
imports: import functools
  import pickle
  from typing import Dict, Callable, Optional, TypeVar, Generic, Iterator
  from torch.utils.data.datapipes._typing import _DataPipeMeta, _IterDataPipeMeta
  from torch.utils.data.datapipes._hook_iterator import _SnapshotState
  from torch.utils.data.datapipes.utils.common import _deprecation_warning, _iter_deprecated_functional_names, _map_deprecated_functional_names
  from torch.utils.data.dataset import Dataset, IterableDataset
label_desc: Use image node_id 3 for calling the _IterDataPipeSerializationWrapper obj's underlying member method code with example usage: obj.__next__() and returns: next