code: def is_audio_file(filepath):
      return any(
          os.path.basename(filepath).endswith(extension)
          for extension in AUDIO_EXTENSIONS
      )
  
file_path: DeepSpeech/bin/import_vctk.py
imports: import os
  import random
  import re
  from multiprocessing import Pool
  from zipfile import ZipFile
  import librosa
  import progressbar
  from deepspeech_training.util.downloader import SIMPLE_BAR, maybe_download
  from deepspeech_training.util.importers import get_counter, get_imported_samples, print_import_report
label_desc: Use image node_id 9 for calling a global function with example usage: is_audio_file(filepath) and returns: any