/// Random UUID, this value will be refreshed every time
+ (NSString *)uuid;

/// Install UUID, this value will be refreshed every time you reinstall
+ (NSString *)uuidForInstall;

/// Open the application UUID, this value will be refreshed every time the application is opened
+ (NSString *)uuidForAppOpen;

/// IDFA, open and close authorization, this value will be refreshed
+ (NSString *)uuidForIDFA;

/// IDFV
+ (NSString *)uuidForIDFV;

/// Device information UUID, generated according to device information, can remain unchanged for a period of time
+ (NSString *)uuidForDeviceInfo;

/// Keychain UUID, uninstall application remains unchanged
+ (NSString *)uuidForKeychain;

/// Device UUID, the unique identifier of the device
+ (NSString *)uuidForDevice;