/**
 * Subscribes to a CSS media query and returns whether it currently matches.
 *
 * @param {string} query - A valid CSS media query string
 * @param {boolean} [defaultValue=false] - Value returned during SSR
 * @returns {boolean} Whether the media query currently matches
 *
 * @example
 * const isPortrait = useMediaQuery('(orientation: portrait)');
 */
export declare function useMediaQuery(query: string, defaultValue?: boolean): boolean;