export declare class BrowserUtils {
    static isInBrowser(): boolean;
    static isServer(): boolean;
    static getUA(): string;
    static isMobile(): boolean;
    static isOpera(): boolean;
    static isIE(): boolean;
    static isIE9(): boolean;
    static isEdge(): boolean;
    static isChrome(): boolean;
    static isPhantomJS(): boolean;
    static isFirefox(): boolean;
}