export interface Ref<T> {
    current: T | undefined;
    value?: T;
}
/**
 * Creates a new Ref object compatible with both React-style `.current`
 * and lit-html-style `.value` property access.
 *
 * @function
 * @template T
 * @param   {T} [initialValue]
 * @return  {Ref<T>}
 */
export declare function createRef<T>(initialValue?: T): Ref<T>;
/**
 * Returns a memoized Ref object that persists across renders.
 * The ref object is compatible with both React-style `.current`
 * and lit-html-style `.value` property access, making it usable
 * with lit-html's `ref` directive.
 *
 * @function
 * @template T
 * @param   {T} [initialValue]
 * @return  {Ref<T>} Ref object with both `current` and `value` properties
 */
export declare function useRef<T>(initialValue?: T): Ref<T>;