export declare class StopWatch {
    /**
     * The time string
     */
    time: string;
    /**
     * The string that is using wheen resetting the timer
     */
    blankTime: string;
    private timeBegan;
    private timeStopped;
    private stoppedDuration;
    private started;
    private running;
    render(): any;
    toggle(): Promise<void>;
    start(): Promise<void>;
    stop(): Promise<void>;
    reset(): Promise<void>;
    private zeroPrefix;
    private clockRunning;
    timeString: string;
    timeBlankString: string;
    readonly isRunning: boolean;
    readonly isStarted: boolean;
}