code: def _wait_impl(self) -> Dict[str, torch.Tensor]:
      self.actual_value[self.key] *= 3
      return self.actual_value
  
imports: import unittest
  from typing import Dict
  import torch
  import torch.fx
  from torchrec.distributed.types import LazyAwaitable
label_desc: Use image node_id 2 for calling the NeedWaitDict obj's underlying member method code with example usage: obj._wait_impl() and returns: self