code: def check_RescueSpeech_data_folders(data_folder):
      """
      Check if the data folder actually contains the RescueSpeech dataset.
  
      If not, raises an error.
  
      Returns
      -------
      None
  
      Raises
      ------
      FileNotFoundError
          If data folder doesn't contain RescueSpeech dataset.
      """
  
      # Checking clips
      if not os.path.exists(data_folder):
          err_msg = (
              "the folder %s does not exist (it is expected in "
              "the RescueSpeech dataset)" % (data_folder)
          )
          raise FileNotFoundError(err_msg)
  
file_path: speechbrain/recipes/RescueSpeech/rescuespeech_prepare.py
imports: import os
  import re
  import csv
  import glob
  import logging
  import torchaudio
  import unicodedata
  from tqdm import tqdm
  from tqdm.contrib import tzip
  from speechbrain.dataio.dataio import read_audio
label_desc: Use image node_id 6 for calling a global function with example usage: check_RescueSpeech_data_folders(data_folder) without return types