code: def forward(self, x):
      return self.linear2(self.batchnorm(self.linear1(x)))
  
file_path: accelerate/tests/test_offload.py
imports: import os
  import unittest
  from tempfile import TemporaryDirectory
  import torch
  import torch.nn
  from accelerate.utils import OffloadedWeightsLoader, extract_submodules_state_dict, load_offloaded_weight, offload_state_dict, offload_weight
label_desc: Use image node_id 2 for calling the ModelForTest obj's underlying member method code with example usage: obj.forward(x) and returns: self