code: def _parse(self):
      image_dir = self.image_dir
      if not isinstance(image_dir, Sequence):
          image_dir = [image_dir]
      images = []
      for im_dir in image_dir:
          if os.path.isdir(im_dir):
              im_dir = os.path.join(self.dataset_dir, im_dir)
              images.extend(_make_dataset(im_dir))
          elif os.path.isfile(im_dir) and _is_valid_file(im_dir):
              images.append(im_dir)
      return images
  
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 5 for calling the ImageFolder obj's underlying member method code with example usage: obj._parse() and returns: images