code: def forward(self, x):
      return self.linear2(self.batchnorm(self.linear1(x)))
  
imports: import inspect
  import unittest
  import torch
  import torch.nn
  from accelerate.hooks import AlignDevicesHook, ModelHook, SequentialHook, add_hook_to_module, attach_align_device_hook, remove_hook_from_module, remove_hook_from_submodules
  from accelerate.test_utils import require_multi_gpu
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