/**
 * @brief SDK宿主平台的用户昵称,默认返回"TCMPP" - The user nickname of the SDK host platform, which returns "TCMPP" by default
 */
- (NSString *)getAppNickName;

/**
 * @brief SDK宿主平台的用户头像,默认返回demo图片 - SDK host platform user avatar, returns demo image by default
 */
- (UIImage *)getAppAvatar;

/**
 * @brief 获取SDK宿主平台的当前用户账号标识，一般填uin或openid - Get the current user account ID of the SDK host platform, usually fill in uin or openid
 *
 * 注意：返回nil会导致SDK内某些缓存失效。如果没有登录，可以填个设备号id来避免缓存失效 - Note: Returning nil will cause some caches in the SDK to become invalid. If you are not logged in, you can fill in the device ID to avoid cache failure.
 */
- (NSString *_Nonnull)getAppUID;