code: def convert_time(self, time):
          
          time_string = str(datetime.timedelta(seconds=int(time)))
          if time_string.split(':')[0] == '0':
              time_string = time_string.partition(':')[2]
          return time_string
docs: A helper function to convert seconds into hh:mm:ss for better
          readability.
  
          time: A string representing time in seconds.