import React from 'react';
export interface RootRefProps<T extends Element = Element> {
    rootRef: React.Ref<T>;
    children: React.ReactElement<any>;
}
/**
 * Helper component to allow attaching a ref to a
 * wrapped element to access the underlying DOM element.
 *
 * From Material's UI RootRef component
 */
export declare class RootRef<T extends Element = Element> extends React.Component<RootRefProps<T>> {
    private ref;
    componentDidMount(): void;
    componentDidUpdate(prevProps: any): void;
    componentWillUnmount(): void;
    render(): React.ReactElement<any, string | React.JSXElementConstructor<any>> & React.ReactNode;
}