code: def ensure_path_exists(filename: str):
      # ensure the path exists
      dirpath = os.path.dirname(filename)
      if not os.path.exists(dirpath):
          Path(dirpath).mkdir(parents=True, exist_ok=True)
  
file_path: ColossalAI/colossalai/utils/common.py
imports: import functools
  import os
  import random
  from contextlib import contextmanager
  from pathlib import Path
  from typing import Callable
  import numpy
  import torch
label_desc: Use image node_id 1 for calling a global function with example usage: ensure_path_exists(filename) without return types