export type CronField = {
    any: boolean;
    values: ReadonlySet<number>;
};
export type ParsedCron = {
    minute: CronField;
    hour: CronField;
    dayOfMonth: CronField;
    month: CronField;
    dayOfWeek: CronField;
};
export declare function parseCron(expr: string): ParsedCron;
/** Whether the minute containing `epochMs` matches, evaluated in UTC. */
export declare function cronMatches(cron: ParsedCron, epochMs: number): boolean;
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