export declare class Duration {
    private _ms;
    private constructor();
    get value(): number;
    get ms(): number;
    static from(duration: Duration): Duration;
    static ofDays(hours: number): Duration;
    static ofHours(hours: number): Duration;
    static ofMinutes(minutes: number): Duration;
    static ofSeconds(seconds: number): Duration;
    static ofMiliseconds(miliseconds: number): Duration;
}