code: def forward(self, x, *args, **kwargs):
      return self.model(x)
  
file_path: robustness/robustness/model_utils.py
imports: import torch
  from torch import nn
  import dill
  import os
  from .tools import helpers, constants
  from .attacker import AttackerModel
label_desc: Use image node_id 2 for calling the DummyModel obj's underlying member method code with example usage: obj.forward(x) and returns: self