code: def check_folders(*folders):
      """Returns False if any passed folder does not exist."""
      for folder in folders:
          if not os.path.exists(folder):
              return False
      return True
  
file_path: speechbrain/recipes/UrbanSound8k/urbansound8k_prepare.py
imports: import os
  import json
  import logging
  import ntpath
  import torchaudio
  from speechbrain.dataio.dataio import read_audio
  from speechbrain.dataio.dataio import load_data_csv
label_desc: Use image node_id 4 for calling a global function with example usage: check_folders() and returns: True, False