code: def __getitem__(
      self, idx: int
  ) -> Union[Tuple[Indexable, ...], Indexable]:
      output = tuple(indexable[idx] for indexable in self.indexables)
      return output if len(output) > 1 else output[0]
  
imports: import numpy
  import torch
  from typing import Tuple, Union
label_desc: Use image node_id 2 for calling the TorchDataset obj's underlying member method code with example usage: obj.__getitem__(idx) and returns: unknown