code: def makedirs(save_dir):
      dirname = (
          save_dir
          if os.path.isdir(save_dir)
          else os.path.dirname(save_dir)
      )
      if not os.path.exists(dirname):
          os.makedirs(dirname)
  
file_path: PaddleSeg/contrib/PP-HumanSeg/src/seg_demo.py
imports: import argparse
  import os
  import sys
  import cv2
  import numpy
  from tqdm import tqdm
  from paddleseg.utils import get_sys_env, logger, get_image_list
  from infer import Predictor
label_desc: Use image node_id 3 for calling a global function with example usage: makedirs(save_dir) without return types