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/LibriTTS/vocoder/hifigan/libritts_prepare.py
imports: from speechbrain.utils.data_utils import get_all_files, download_file
  import json
  import os
  import shutil
  import random
  import logging
  import torchaudio
  import torch
  from tqdm import tqdm
  from speechbrain.inference.txt import GraphemeToPhoneme
  from speechbrain.utils.text_to_sequence import _g2p_keep_punctuations
label_desc: Use image node_id 6 for calling a global function with example usage: check_folders() and returns: True, False