import FormattedDuration from './formatted-duration';
declare class Timer {
    private _startTime;
    private _stopTime;
    constructor();
    /**
     * Start running the timer.
     *
     * @memberof Timer
     */
    start: () => void;
    /**
     * Stops the timer, and returns how much time passed.
     *
     * @returns The amounted of time taken as a FormattedDuration object
     * @memberof Timer
     */
    stop: () => FormattedDuration;
}
export { FormattedDuration };
export default Timer;