code: def __init__(self, dataset_len: int) -> None:
      self.dataset_len = dataset_len
  
imports: import random
  from typing import Any, Dict, Tuple
  import numpy
  import torch
  from torch import nn
  from determined import pytorch
label_desc: Use image node_id 1 to create a new OnesDataset object from inherited base classes: torch.utils.data with example: obj = OnesDataset(dataset_len)