import { DateTime } from "luxon";
/**
 * `Schedule` objects search for execution times of a cron schedule
 */
export declare class Schedule {
    readonly arr: number[][];
    readonly now: DateTime;
    date: DateTime;
    pristine: boolean;
    /**
     * Default constructor
     *
     * @param arr The cron schedule as an array
     * @param now An optional reference date
     * @param timezone An optional timezone string
     */
    constructor(arr: number[][], now?: Date | string, timezone?: string);
    /**
     * Resets the iterator
     */
    reset(): void;
    /**
     * Returns the time the schedule would run next
     *
     * @return The time the schedule would run next
     */
    next(): DateTime;
    /**
     * Returns the time the schedule would have last run at
     *
     * @return The time the schedule would have last run at
     */
    prev(): DateTime;
}