import React from 'react';
import { IButtonProps } from '..';
export interface ICountDownProps extends Omit<IButtonProps, 'onChange'> {
    defaultText: string;
    onStart?: () => void;
    onFinish?: () => void;
    onChange?: (left: number) => void;
    beforeStartCheck?: () => Promise<boolean>;
    count: number;
    preventDefault?: boolean;
}
export declare const CountDownBtn: React.FC<ICountDownProps>;