/**
 * Compares the range of time now with the time provided and provides a nice data representation to build UIs with
 * @param {number} initialSecondsLeft how many seconds remain in the period
 * @param {number} countBy Optional param for how often this function should run (default to every second)
 * @returns {object} time representation broken down into days, hours, minutes, seconds and secondsLeft (remaining)
 */
export declare const useTimeCountdown: (initialSecondsLeft: number, countBy?: number) => {
    secondsLeft: number;
    years: number;
    days: number;
    hours: number;
    minutes: number;
    seconds: number;
};