code: def main(args):
      image_file_list = get_image_file_list(args.image_dir)
      layout_predictor = LayoutPredictor(args)
      count = 0
      total_time = 0
  
      repeats = 50
      for image_file in image_file_list:
          img, flag, _ = check_and_read(image_file)
          if not flag:
              img = cv2.imread(image_file)
          if img is None:
              logger.info(
                  "error in loading image:{}".format(image_file)
              )
              continue
  
          layout_res, elapse = layout_predictor(img)
  
          logger.info("result: {}".format(layout_res))
  
          if count > 0:
              total_time += elapse
          count += 1
          logger.info(
              "Predict time of {}: {}".format(image_file, elapse)
          )
  
file_path: PaddleOCR/ppstructure/layout/predict_layout.py
imports: import os
  import sys
  import cv2
  import numpy
  import time
  import tools.infer.utility
  from ppocr.data import create_operators, transform
  from ppocr.postprocess import build_post_process
  from ppocr.utils.logging import get_logger
  from ppocr.utils.utility import get_image_file_list, check_and_read
  from ppstructure.utility import parse_args
  from picodet_postprocess import PicoDetPostProcess
label_desc: Use image node_id 1 for calling a global function with example usage: main(args) without return types