code: def __init__(self, backbone):
      super().__init__(backbone=backbone, num_classes=2)
  
file_path: BigDL/python/nano/test/pytorch/utils/_train_imagefolder.py
imports: import os
  import torch
  from bigdl.nano.pytorch.vision.datasets import ImageFolder
  from bigdl.nano.pytorch.vision.transforms import transforms
  import pytorch_lightning
  from torch.utils.data import DataLoader
  from bigdl.nano.pytorch.vision.models import ImageClassifier
label_desc: Use image node_id 1 to create a new Net object from inherited base classes: ImageClassifier with example: obj = Net(backbone)