code: def __getitem__(self, index: int) -> Tuple:
      v = float(self.initial_value + 0.1 * index)
      return torch.Tensor([v]), torch.Tensor([v])
  
file_path: determined/examples/features/unmanaged/advanced/checkpoints_advanced.py
imports: from typing import Tuple
  import torch
  from determined.experimental import core_v2
label_desc: Use image node_id 3 for calling the IdentityDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: torch,  torch