code: def num_classes(self) -> int:
      return self.__num_classes
  
imports: import copy
  import logging
  import typing
  import torch
  import torch.nn.functional
  from copy import deepcopy
  from autogl.module.hpo.auto_module import AutoModule
label_desc: Use image node_id 5 for calling the ClassificationModel obj's underlying member method code with example usage: obj.num_classes() and returns: self