code: def get_origin_dataset(self):
      return self._dataset
  
imports: from __future__ import annotations
  from collections import defaultdict
  from typing import Any, Callable, Dict, List, Type
  import torch
  from torch.utils.data import Dataset, IterableDataset
  from .utils import _default_get_rngs_state, _default_set_rngs_state, _default_manual_seed
label_desc: Use image node_id 4 for calling the _UidDataset obj's underlying member method code with example usage: obj.get_origin_dataset() and returns: self