code: def remove_punctuation(a_string):
      """Remove all punctuation from string"""
      return a_string.translate(
          str.maketrans("", "", string.punctuation)
      )
  
file_path: speechbrain/recipes/Voicebank/dereverb/spectral_mask/voicebank_revb_prepare.py
imports: import os
  import json
  import string
  import logging
  from speechbrain.utils.data_utils import get_all_files
  from speechbrain.dataio.dataio import read_audio
label_desc: Use image node_id 3 for calling a global function with example usage: remove_punctuation(a_string) and returns: a_string