export declare class DeviceInfo {
    iPhone: boolean;
    retina: boolean;
    superRetina: boolean;
    iPad: boolean;
    android: boolean;
    winPhone: boolean;
    iOS: boolean;
    mobile: boolean;
    touchDevice: boolean;
    pixelRatio: number;
    viewport: {
        width: number;
        height: number;
    };
    screen: {
        width: number;
        height: number;
    };
    constructor();
}