import { useRafState } from '..';
export interface WindowSize {
    width: number;
    height: number;
}
/**
 * Tracks window inner dimensions.
 *
 * @param stateHook State hook that will be used internally. Default: `useRafState`.
 * @param measureOnMount Perform size fetch during mount effect stage or synchronously with render.
 */
export declare function useWindowSize(stateHook?: typeof useRafState, measureOnMount?: boolean): WindowSize;