export declare const CONSTRAINTS: Readonly<{
    readonly second: readonly [0, 59];
    readonly minute: readonly [0, 59];
    readonly hour: readonly [0, 23];
    readonly dayOfMonth: readonly [1, 31];
    readonly month: readonly [1, 12];
    readonly dayOfWeek: readonly [0, 7];
}>;
export declare const MONTH_CONSTRAINTS: Readonly<{
    readonly 1: 31;
    readonly 2: 29;
    readonly 3: 31;
    readonly 4: 30;
    readonly 5: 31;
    readonly 6: 30;
    readonly 7: 31;
    readonly 8: 31;
    readonly 9: 30;
    readonly 10: 31;
    readonly 11: 30;
    readonly 12: 31;
}>;
export declare const PARSE_DEFAULTS: Readonly<{
    readonly second: "0";
    readonly minute: "*";
    readonly hour: "*";
    readonly dayOfMonth: "*";
    readonly month: "*";
    readonly dayOfWeek: "*";
}>;
export declare const ALIASES: Readonly<{
    readonly jan: 1;
    readonly feb: 2;
    readonly mar: 3;
    readonly apr: 4;
    readonly may: 5;
    readonly jun: 6;
    readonly jul: 7;
    readonly aug: 8;
    readonly sep: 9;
    readonly oct: 10;
    readonly nov: 11;
    readonly dec: 12;
    readonly sun: 0;
    readonly mon: 1;
    readonly tue: 2;
    readonly wed: 3;
    readonly thu: 4;
    readonly fri: 5;
    readonly sat: 6;
}>;
export declare const TIME_UNITS_MAP: Readonly<{
    readonly SECOND: "second";
    readonly MINUTE: "minute";
    readonly HOUR: "hour";
    readonly DAY_OF_MONTH: "dayOfMonth";
    readonly MONTH: "month";
    readonly DAY_OF_WEEK: "dayOfWeek";
}>;
export declare const TIME_UNITS: ["second", "minute", "hour", "dayOfMonth", "month", "dayOfWeek"];
export declare const TIME_UNITS_LEN: number;
export declare const PRESETS: Readonly<{
    readonly '@yearly': "0 0 0 1 1 *";
    readonly '@monthly': "0 0 0 1 * *";
    readonly '@weekly': "0 0 0 * * 0";
    readonly '@daily': "0 0 0 * * *";
    readonly '@hourly': "0 0 * * * *";
    readonly '@minutely': "0 * * * * *";
    readonly '@secondly': "* * * * * *";
    readonly '@weekdays': "0 0 0 * * 1-5";
    readonly '@weekends': "0 0 0 * * 0,6";
}>;
export declare const RE_WILDCARDS: RegExp;
export declare const RE_RANGE: RegExp;