code: def get_utt(spk: str, start_time: int, end_time: int) -> str:
      return f"{spk}-{start_time}_{end_time}"
  
label_desc: Use image node_id 1 for calling a global function with example usage: get_utt(spk, start_time, end_time) and returns: spk, str, start_time, str, end_time