import { MutableRefObject } from "react";
/**
 * A simple type that can be used to get a DOM node either as a ref object from
 * react, an HTMLElement, or null
 */
export declare type RefOrInstance = HTMLElement | null | MutableRefObject<HTMLElement | null>;
/**
 * Simple private util to get the DOM "instance" from either a ref object or an
 * HTMLElement.
 *
 * @param refOrInstance The ref or instance to get an HTMLElement from
 * @return The HTMLElement or null.
 * @internal
 */
export default function getInstance(refOrInstance: RefOrInstance): HTMLElement | null;