export declare function mergeRefs<T = any>(refs: Array<React.MutableRefObject<T> | React.LegacyRef<T> | undefined | null>): React.RefCallback<T>;
/**
 * {@link mergeRefs}, memoized on the refs themselves.
 *
 * `mergeRefs` returns a new callback on every call, and React detaches and
 * reattaches a ref whose identity changed - calling it with `null` and then
 * the element again on every render. Callers that keep their own ref
 * alongside a forwarded one want the stable version, so this is the one to
 * reach for from a component.
 *
 * Mirrors `react-merge-refs`' own `useMergeRefs`: the refs array is spread
 * into the dependency list, which assumes a caller passes the same number of
 * refs on every render - true of every use here, and of the upstream hook.
 */
export declare function useMergeRefs<T = any>(refs: Array<React.MutableRefObject<T> | React.LegacyRef<T> | undefined | null>): React.RefCallback<T>;