import type { IntervalSchedule, StoredSchedule } from '../../types';
export declare function validateInterval(schedule: IntervalSchedule): void;
export declare function intervalNextRun(schedule: IntervalSchedule, after: Date): Date;
export declare function intervalOccurrences(schedule: IntervalSchedule, first: Date): Generator<Date>;
export declare function resolveInterval(job: StoredSchedule): IntervalSchedule;