import { BlueRainType } from '@blueeast/bluerain-os';
import { WindowSize } from '../typings';
/**
 * The state of current window or screen. Stored in `bluerain.window` in the redux store.
 * @property {number} width The window width
 * @property {number} height The window height
 * @property {WindowSize} size The window size i.e. (xs|sm|md|lg|xl)
 */
export declare type WindowState = {
    width?: number;
    height?: number;
    size?: WindowSize;
};
export default function initialState(BR: BlueRainType): WindowState;