code: def forward(self, x):
      return self._forward_impl(x)
  
imports: import os
  import sys
  import torch
  import torch.nn
  import torch.utils.model_zoo
  from torch.nn import functional
label_desc: Use image node_id 3 for calling the MobileNetV2 obj's underlying member method code with example usage: obj.forward(x) and returns: self