/// <reference types="react" />
export declare type ReactRef<T> = React.RefCallback<T> | React.MutableRefObject<T>;
/**
 * Set ref into a React element.
 */
export declare function setRef<T>(ref: ReactRef<T> | null, value: T): void;
/**
 * Merges multiple refs into a single function ref.
 */
export declare const mergeRefs: <T>(...refs: (ReactRef<T> | null)[]) => ((value: T) => void) | null;
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