33 template <
typename Function>
    37   return schedule(fn, absoluteTimePoint, Duration::zero());
    40 template <
typename Function>
    45   return schedule(fn, absoluteTimePoint, interval);
 TimerId schedule(Function fn, const TimePoint &absoluteTimePoint)
TimerId scheduleInterval(Function fn, const TimePoint &absoluteTimePoint, const Duration &interval)
Clock::time_point TimePoint