code: def build_training_data_loader(self) -> pytorch.DataLoader:
      return pytorch.DataLoader(
          OnesDataset(), batch_size=self.per_slot_batch_size
      )
  
file_path: determined/harness/tests/experiment/fixtures/ancient-checkpoints/0.21.0-pytorch-main/code/train.py
imports: import logging
  from typing import Any, Callable, Dict, List, Sequence, Tuple, Union, cast
  import torch
  from torch import nn
  import determined
  from determined import pytorch
label_desc: Use image node_id 4 for calling the OneVarPytorchTrial obj's underlying member method code with example usage: obj.build_training_data_loader() and returns: pytorch