/**
 * @brief SDK host platform's user nickname, returns "TCMPP" by default -- SDK host platform's user nickname, returns "TCMPP" by default.
 */
- (NSString *)getAppNickName;

/**
* @ brief SDK host platform user avatar, the default return demo image, SDK host platform user avatar, default return demo image
 */
- (UIImage *)getAppAvatar;

/**
 * @brief Get the current user account identifier of the SDK host platform, usually fill in uin or openid - Get the current user account identifier of the SDK host platform, usually fill in uin or openid
 
 * Note: Returning nil will invalidate some caches within the SDK. If you are not logged in, you can fill in a device number id to avoid cache invalidation - Note: Returning nil will cause some caches within the SDK to be invalidated. If not logged in, you can fill in a device number id to avoid cache invalidation.
 */
- (NSString *_Nonnull)getAppUID;