code: def _get_filename(folder, index):
      if folder == "Audio":
          return f"quesst14_{index:05d}.wav"
      elif folder == "dev_queries":
          return f"quesst14_dev_{index:04d}.wav"
      elif folder == "eval_queries":
          return f"quesst14_eval_{index:04d}.wav"
      return
  
imports: import os
  from collections import defaultdict
  from pathlib import Path
  from parameterized import parameterized
  from torchaudio.datasets import quesst14
  from torchaudio_unittest.common_utils import get_whitenoise, save_wav, TempDirMixin, TorchaudioTestCase
label_desc: Use image node_id 1 for calling a global function with example usage: _get_filename(folder, index) and returns: str, index, str, str, index, str, str, index, str