code: def get_label_list(self):
      # Only VOC dataset needs label list in ImageFold
      return self.anno_path
  
imports: import os
  import copy
  import numpy
  from paddle.io import Dataset
  from ppdet.core.workspace import register, serializable
  from ppdet.utils.download import get_dataset_path
  from ppdet.data import source
  from ppdet.utils.logger import setup_logger
label_desc: Use image node_id 10 for calling the ImageFolder obj's underlying member method code with example usage: obj.get_label_list() and returns: self