code: def make_manifest(directory):
      audios = []
      directory = os.path.expanduser(directory)
      for target in sorted(os.listdir(directory)):
          d = os.path.join(directory, target)
          if not os.path.isdir(d):
              continue
  
          for root, _, fnames in sorted(os.walk(d)):
              for fname in fnames:
                  new_path = os.path.join(root, fname)
                  item = new_path
                  audios.append(item)
      return audios
  
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 7 for calling a global function with example usage: make_manifest(directory) and returns: audios