import React from 'react';
import { Container } from '../_utils/dom';
import { BaseProps } from '../_utils/props';
export interface BackTopProps extends BaseProps {
    target: () => Container;
    onClick: (e: React.MouseEvent) => void;
    visibilityHeight: number;
    children?: React.ReactNode;
}
declare const BackTop: (props: BackTopProps) => JSX.Element | null;
export default BackTop;