import { type MutableRefObject, type RefCallback } from 'react';
/**
 * Type-aware helper to assign multiple refs to a single element. The refs are
 * wrapped into a RefCallback that can set the value of both RefObjects and other
 * RefCallbacks.
 *
 * Useful when using both local and forwarded refs oh the same element:
 * <Component ref={mergeRefs(forwardedRef, localRef)} />
 */
type MutableRefList<T> = Array<RefCallback<T> | MutableRefObject<T> | undefined | null>;
export declare function setRefs<T>(val: T, ...refs: MutableRefList<T>): void;
export declare function mergeRefs<T>(...refs: MutableRefList<T>): RefCallback<T>;
export {};