code: def path_leaf(path):
      head, tail = ntpath.split(path)
      return tail or ntpath.basename(head)
  
file_path: speechbrain/recipes/UrbanSound8k/urbansound8k_prepare.py
imports: import os
  import json
  import logging
  import ntpath
  import torchaudio
  from speechbrain.dataio.dataio import read_audio
  from speechbrain.dataio.dataio import load_data_csv
label_desc: Use image node_id 7 for calling a global function with example usage: path_leaf(path) and returns: unknown