export declare type Outcome = {
    phone?: string | 'Unknow';
    tablet?: string | 'Unknow';
    mobile?: string | 'Unknow';
    os?: string | 'Unknow';
    userAgent?: string | 'Unknow';
    mobileGrade?: string | 'Unknow';
    smallerSide?: number;
    key?: string;
    val?: boolean | number | string;
};
export default function getDeviceInfo(): Outcome[] | undefined;