# Extract inviter info
                                inviter_link = root.find(".//link[@name='username']//nickname")
                                inviter_nickname = inviter_link.text if inviter_link is not None else "未知用户"

                                # Extract invited member info
                                invited_link = root.find(".//link[@name='names']//nickname")
                                invited_nickname = invited_link.text if invited_link is not None else "未知用户"
                                if invited_link is None:
                                    invited_link = root.find(".//link[@name='adder']//nickname")
                                    invited_nickname = invited_link.text if invited_link is not None else "未知用户"

                                self.content = f'"{inviter_nickname}"邀请"{invited_nickname}"加入了群聊'
                                logger.debug(f"解析加入群聊消息类型{self.content}")
                                self.actual_user_nickname = invited_nickname
                                # 获取群聊或好友的名称
                                brief_info_response = self.client.get_brief_info(self.app_id, [self.other_user_id])
                                if brief_info_response['ret'] == 200 and brief_info_response['data']:
                                    brief_info = brief_info_response['data'][0]
                                    self.other_user_nickname = brief_info.get('nickName', '')
                                    # 获取群昵称
                                    if not self.other_user_nickname:
                                        self.other_user_nickname = self.other_user_id
                                logger.debug(f"解析消息群组名称{self.other_user_nickname}")
                                return

                            else:
                                logger.debug(f"加入了群聊不在template中 {template}")
                        else:
                            logger.debug(f"template_type-{template_type} 不在 tmpl_type_profile tmpl_type_profilewithrevoke 中")                                            
                    else:
                        logger.debug(f"找不到.//content_template")
                else:
                    logger.debug(f"找不到.//sysmsgtemplate")
            except ET.ParseError as e:
                logger.error(f"[gewechat] Failed to parse group join XML: {e}")
                # Fall back to regular content handling
                pass
else:
    raise NotImplementedError("Unsupported message type: Type:{}".format(msg_type))`