import { MutableRefObject, Ref, RefObject } from 'react';
export declare function setRef<T>(ref: Ref<T>, value: T): void;
export declare function getRef(ref: RefObject<Element> | Element): Element | null;
export declare function useCallbackRef<T>(initialValue: T | null, callback: (newValue: T | null, lastValue: T | null) => void): MutableRefObject<T | null>;
export declare function useForkRef<T>(...refs: Ref<T>[]): Ref<T>;
export declare function forkRef<T>(...refs: Ref<T>[]): Ref<T>;
export type NodeByRef = RefObject<Element> | Element | (() => RefObject<Element> | Element);
export declare function getNodeByRef(ref: NodeByRef): Element | null;