code: def _format_timedelta(self, index, time_delta, is_current):
          
          time_delta_formatted = ""
  
          if time_delta["total_minutes"] <= self.time_to_max:
              time_delta_formatted = self.py3.safe_format(
                  self.format_timer,
                  {
                      "days": time_delta["days"],
                      "hours": time_delta["hours"],
                      "minutes": time_delta["minutes"],
                      "is_current": is_current,
                  },
              )
  
          return time_delta_formatted
docs: Formats the dict time_to containg days/hours/minutes until an
          event starts into a composite according to time_to_formatted.
  
          Returns: A formatted composite.