export interface Iua {
    isAndroid: boolean;
    isIOS: boolean;
    isWindows: boolean;
    isMac: boolean;
    isIPad: boolean;
    isMobile: boolean;
    isWebKit: boolean;
    isChrome: boolean;
    isFirefox: boolean;
    isGecko: boolean;
    is360se: boolean;
    isIE: boolean;
    isEdge: boolean;
    isOpera: boolean;
    isSafari: boolean;
    isUCBrowser: boolean;
    isBaiduBrowser: boolean;
    isSougouBrowser: boolean;
    isLiebaoBrowser: boolean;
    isWeixin: boolean;
    isSinaWeibo: boolean;
    isQQ: boolean;
    isQQWeibo: boolean;
    isFacebook: boolean;
    isTwitter: boolean;
    isInstagram: boolean;
    isIphoneX: boolean;
    isIPhoneXR: boolean;
    isIPhoneXSMax: boolean;
}
/**
 * generation ua object accroding to navigator.userAgent
 * @param {string} u navigator.userAgent
 * @return {null | Record<string, boolean>} ua object
 */
export declare function getUA(u: ''): null;
export declare function getUA(u: string): Iua;
export default getUA;