/**
 * CRON:
 ┌────────────── second (optional)
 │ ┌──────────── minute
 │ │ ┌────────── hour
 │ │ │ ┌──────── day of month
 │ │ │ │ ┌────── month
 │ │ │ │ │ ┌──── day of week
 │ │ │ │ │ │
 │ │ │ │ │ │
 1  2  3   4  5  6
 */
export declare class CronDaemon {
    private taskList;
    constructor();
    cancelJob(jobName: string): boolean;
    hasJob(jobName: string): boolean;
    jobList(): string[];
    /**
     *
     * @param {string} jobName
     * @param {string} cron
     * @param {Function} callback
     */
    registerJob(jobName: string, cron: string, callback: Function): void;
}