import { DOMFactoryExt } from '../factory';
declare const refSymbol: unique symbol;
export type Ref<T = HTMLElement> = {
    current?: T;
    [refSymbol]: typeof refSymbol;
};
export declare const ref: <T extends HTMLElement>() => Ref<T>;
export declare function isRef(param: unknown): param is Ref;
export declare const refExt: DOMFactoryExt;
export {};