code: def ensure_directory_exists(filename):
      """Create the directory path to ``filename`` if it does not already exist.
  
      Args:
          filename (str): A file path.
      """
      dirname = os.path.dirname(filename)
      os.makedirs(dirname, exist_ok=True)
  
imports: from collections.abc import Iterable
  from deepspeed.moe.utils import is_moe_param
  import os
  import psutil
  import gc
  from math import sqrt
  from math import floor
  from bisect import bisect_left
  import torch
  from torch import inf
  from deepspeed import comm
  from deepspeed.utils import groups, logger
  from deepspeed.runtime.constants import PIPE_REPLICATED
  from numpy import prod
label_desc: Use image node_id 2 for calling a global function with example usage: ensure_directory_exists(filename) without return types