def get_chat(self, chat_uid: ChatID) -> 'Chat':
     chat_info = chat_uid.split('_')
     chat_type = chat_info[0]
     chat_attr = chat_info[1]
     chat = None
     if chat_type == 'friend':
         chat_uin = int(chat_attr)
         remark_name = self.get_friend_remark(chat_uin)
         chat = ChatMgr.build_efb_chat_as_private(
             EFBPrivateChat(
                 uid=chat_attr,
                 name=remark_name if remark_name else "",
             ))
     elif chat_type == 'group':
         chat_uin = int(chat_attr)
         group_info = self.get_group_info(chat_uin, no_cache=False)
         group_members = self.get_group_member_list(chat_uin,
                                                    no_cache=False)
         chat = ChatMgr.build_efb_chat_as_group(
             EFBGroupChat(uid=f"group_{chat_uin}",
                          name=group_info.get('GroupName', "")),
             group_members)
     elif chat_type == 'private':
         pass  # fixme
     elif chat_type == 'phone':
         pass  # fixme
     return chat
 def get_chat(self, chat_uid: ChatID) -> 'Chat':
     chat_info = chat_uid.split('_')
     chat_type = chat_info[0]
     chat_attr = chat_info[1]
     chat = None
     if chat_type == 'friend':
         chat_uin = int(chat_attr)
         if not self.info_list.get('friend', None) and chat_uin in self.info_list['friend']:
             chat = ChatMgr.build_efb_chat_as_private(EFBPrivateChat(
                 uid=f"friend_{chat_attr}",
                 name=self.info_list['friend'][chat_uin].remark,
                 alias=self.info_list['friend'][chat_uin].nickname
             ))
         else:
             remark_name = self.get_friend_remark(chat_uin)
             chat = ChatMgr.build_efb_chat_as_private(EFBPrivateChat(
                 uid=f"friend_{chat_attr}",
                 name=remark_name if remark_name else "",
             ))
     elif chat_type == 'group':
         chat_uin = int(chat_attr)
         group_info = self.get_group_info(chat_uin, no_cache=False)
         group_members = self.get_group_member_list(chat_uin, no_cache=False)
         chat = ChatMgr.build_efb_chat_as_group(EFBGroupChat(
             uid=f"group_{chat_uin}",
             name=group_info.get('name', "")
         ), group_members)
     elif chat_type == 'private':
         pass  # fixme
     elif chat_type == 'phone':
         pass  # fixme
     return chat