@class NSDateInterval; @interface REUpNextPeriodOfDayPredictor : REObservableSingleton @property (readonly, nonatomic) unsigned long long currentPeriodOfDay; @property (readonly, nonatomic) NSDateInterval *intervalForCurrentPeriodOfDay; - (id)dateIntervalForNextPeriodOfDay:(unsigned long long)a0; - (id)dateIntervalForPreviousPeriodOfDay:(unsigned long long)a0; @end