code: def _hook(self, _, input, output):
      device = input[0].device
      self.hidden[device] = output
  
imports: import copy
  import random
  from functools import wraps, partial
  import torch
  from torch import nn, einsum
  import torch.nn.functional
  from torchvision import transforms
  from einops import rearrange, reduce, repeat
label_desc: Use image node_id 3 for calling the NetWrapper obj's underlying member method code with example usage: obj._hook(_, input, output) without return types