code: def __init__(self, backbone):
      super().__init__(backbone=backbone, num_classes=num_classes)
  
file_path: BigDL/python/nano/test/pytorch/utils/_train_torch_lightning.py
imports: import torch
  from copy import deepcopy
  import pytorch_lightning
  import torchvision.transforms
  from torchvision.datasets import CIFAR10
  from torch.utils.data import DataLoader
  from torch.utils.data.sampler import SequentialSampler
  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)