import React from 'react';
type CounterT = {
    duration: number;
    start?: string;
    end?: string;
    className?: string;
    withAnimation?: boolean;
    fontSize?: number;
    decimals?: number;
    onUpdate?: (nextValue: string) => void;
    isStart?: boolean | null;
};
export default function Counter({ duration, start, end, className, withAnimation, fontSize, decimals: decimalsProp, onUpdate, isStart, }: CounterT): React.JSX.Element | null;
export {};