code: def forward(self, x):
      return self.model(x)
  
file_path: BigDL/python/nano/tutorial/training/pytorch/pytorch_cv_data_pipeline.py
imports: import torch
  from torch import nn
  from torch.utils.data import DataLoader
  from torchvision.models import resnet18
  from bigdl.nano.pytorch import TorchNano
label_desc: Use image node_id 2 for calling the MyPytorchModule obj's underlying member method code with example usage: obj.forward(x) and returns: self