import * as React from 'react';
type PossibleRef<T> = React.Ref<T> | undefined;
/**
 * Merges any number of refs into a single callback ref that assigns the DOM node to all of them, supporting React 19 cleanup functions; prefer {@link useComposedRefs} inside components.
 *
 * @example
 * ```tsx
 * const internalRef = React.useRef<HTMLDivElement>(null);
 * return <div ref={composeRefs(forwardedRef, internalRef)} />;
 * ```
 *
 * @internal Not part of the public API; import it inside the package only.
 */
export declare function composeRefs<T>(...refs: PossibleRef<T>[]): React.RefCallback<T>;
/**
 * Hook version of {@link composeRefs}, memoized with `useCallback` so the DOM node isn't detached and reattached on every render.
 *
 * @example
 * ```tsx
 * const rootRef = React.useRef<HTMLDivElement>(null);
 * const composedRef = useComposedRefs(forwardedRef, rootRef);
 * return <Primitive.div {...props} ref={composedRef} />;
 * ```
 */
export declare function useComposedRefs<T>(...refs: PossibleRef<T>[]): React.RefCallback<T>;
export {};