import React from 'react';
declare class UserAddBetterList extends React.Component<any, any> {
    vBase: number;
    mainBox: any;
    dom: any;
    io: any;
    constructor(props: any);
    componentDidMount(): void;
    componentWillUnmount(): void;
    setObserver(): void;
    checkImIntersection(isIntersecting: boolean): void;
    render(): React.JSX.Element;
}
export default UserAddBetterList;