import type { MutableRefObject, Ref, RefCallback } from "react";
/**
 * @remarks \@since 2.3.0
 */
export declare type EnsuredRefs<E extends HTMLElement> = readonly [
    MutableRefObject<E | null>,
    RefCallback<E | null>
];
/**
 * This is mostly an internal hook that allows for an optional ref (normally
 * from props or hook options) to be merged with a hook's required `ref`. This
 * will return a MutableRefObject used for DOM manipulation in a custom hook
 * followed by a ref callback function that should be passed to the DOM node
 * that will ensure that both the optional `propRef` and hook ref are updated.
 *
 * @remarks \@since 2.3.0
 */
export declare function useEnsuredRef<E extends HTMLElement>(propRef?: Ref<E | null>): EnsuredRefs<E>;