import { Ref } from 'react';
/**
 * Fans one element out to several refs, for a component that needs the node itself *and*
 * hands it to the consumer through a `ref` prop.
 *
 * The returned callback is a new function on every render, so React detaches and reattaches
 * it each time (null, then the node). Every ref here is therefore written twice per render,
 * which is fine for storing a node and wrong for anything with a side effect. Call it inline
 * rather than memoising: a memo would have to list the refs it closes over, and a consumer
 * passing an inline callback ref changes that identity every render anyway.
 */
export declare function mergeRefs<T>(...refs: (Ref<T> | undefined)[]): (node: T | null) => void;