code: def mkdir_if_missing(d):
      if not osp.exists(d):
          os.makedirs(d)
  
file_path: PaddleDetection/configs/mot/pedestrian/tools/visdrone/visdrone2mot.py
imports: import glob
  import os
  import os.path
  import cv2
  import argparse
  import numpy
  import random
label_desc: Use image node_id 1 for calling a global function with example usage: mkdir_if_missing(d) without return types