code: def time_str(length, sample_rate) -> str:
      return str(timedelta(seconds=length // sample_rate))
  
file_path: matchering/matchering/utils.py
imports: import os
  import random
  import string
  import math
  from datetime import timedelta
label_desc: Use image node_id 8 for calling a global function with example usage: time_str(length, sample_rate) and returns: str