import React from "react";
export declare type TimerProps = JSX.IntrinsicElements["div"] & {
    /** Callback when timer ends */
    callback?: VoidFunction;
    /** Timer's duration in milliseconds */
    duration?: number;
    /** Additional timer prefix */
    timerPrefix?: React.ReactNode;
    /** Additional timer suffix */
    timerSuffix?: React.ReactNode;
};
export declare const Timer: React.FC<TimerProps>;