export declare function getClientBrowser(userAgent: string): "Mozilla Firefox" | "Samsung Internet" | "Opera" | "Microsoft Edge (Legacy)" | "Microsoft Edge (Chromium)" | "Google Chrome or Chromium" | "Apple Safari" | "unknown"; export declare function isSafari(userAgent: string): boolean; export declare function isChrome(userAgent: string): boolean; export declare function isFirefox(userAgent: string): boolean; export declare function isEdge(userAgent: string): boolean; export declare function isOpera(userAgent: string): boolean; export declare function isSamsung(userAgent: string): boolean;