import React, { PureComponent, PropsWithChildren } from 'react';
interface PortalProps {
    portalClassName?: string;
    root?: React.ReactNode;
}
declare class PortalWrapper extends PureComponent<PropsWithChildren<PortalProps>> {
    static propTypes: {
        portalClassName: import("prop-types").Requireable<string>;
        root: import("prop-types").Requireable<import("prop-types").ReactNodeLike>;
    };
    static defaultProps: {
        root: null;
    };
    private element;
    private root;
    constructor(props: PortalProps);
    componentDidMount(): void;
    componentWillUnmount(): void;
    render(): JSX.Element;
}
export default PortalWrapper;