code: def read_images(self, paths=[]):
      images = []
      for img_path in paths:
          assert os.path.isfile(
              img_path
          ), "The {} isn't a valid file.".format(img_path)
          img = cv2.imread(img_path)
          if img is None:
              logger.info("error in loading image:{}".format(img_path))
              continue
          images.append(img)
      return images
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import ast
  import copy
  import math
  import os
  import time
  import cv2
  import numpy
  import paddle
  from chinese_ocr_db_crnn_server.character import CharacterOps
  from chinese_ocr_db_crnn_server.utils import base64_to_cv2
  from chinese_ocr_db_crnn_server.utils import draw_ocr
  from chinese_ocr_db_crnn_server.utils import get_image_ext
  from chinese_ocr_db_crnn_server.utils import sorted_boxes
  from paddle.inference import Config
  from paddle.inference import create_predictor
  from PIL import Image
  import paddlehub
  from paddlehub.module.module import moduleinfo
  from paddlehub.module.module import runnable
  from paddlehub.module.module import serving
  from paddlehub.utils.log import logger
label_desc: Use image node_id 4 for calling the ChineseOCRDBCRNNServer obj's underlying member method code with example usage: obj.read_images(paths) and returns: images