import * as React from 'react';
import { RefProps } from './utils';
export declare class RefForward extends React.Component<RefProps> {
    currentNode?: Node | null;
    handleRefOverride: (node: HTMLElement) => void;
    componentDidUpdate(prevProps: RefProps): void;
    componentWillUnmount(): void;
    render(): React.ReactElement<any, string | React.JSXElementConstructor<any>>;
}