declare const os: Readonly<{
    isMac: (ua?: string) => boolean;
    isWindows: (ua?: string) => boolean;
    isIOS: (ua?: string) => boolean;
    isAndroid: (ua?: string) => boolean;
    isWinPhone: (ua?: string) => boolean;
    isLinux: (ua?: string) => boolean;
    isHarmonyOS: (ua?: string) => boolean;
}>;

export { os };