import * as React from 'react';
import { RefProps } from './utils';
export declare class RefFindNode extends React.Component<RefProps> {
    prevNode?: Node | null;
    componentDidMount(): void;
    componentDidUpdate(prevProps: RefProps): void;
    componentWillUnmount(): void;
    render(): React.ReactElement<any, string | React.JSXElementConstructor<any>> & React.ReactNode;
}