code: def ensure_dir(dir):
      Path(dir).mkdir(parents=True, exist_ok=True)
  
imports: import argparse
  from collections import defaultdict
  import json
  import os
  from pathlib import Path
  import hashlib
  import shutil
  import zipfile
  from stanza import __resources_version__
  from stanza.models.common.constant import lcode2lang, two_to_three_letters, three_to_two_letters
  from stanza.resources.default_packages import PACKAGES, TRANSFORMERS, TRANSFORMER_NICKNAMES
  from stanza.resources.default_packages import *
  from stanza.utils.get_tqdm import get_tqdm
label_desc: Use image node_id 2 for calling a global function with example usage: ensure_dir(dir) without return types