code: def __call__(self) -> nn.Module:
      return self.function()
  
file_path: fairscale/fairscale/nn/pipe/types.py
imports: from dataclasses import dataclass
  from typing import Any, Callable, List, Optional, Tuple, Union
  import torch
  from torch import Tensor, nn
label_desc: Use image node_id 2 for calling the LazyModule obj's underlying member method code with example usage: obj.__call__() and returns: self