virtual QList<BufferId> requestBufferIdsForNetwork(UserId user, NetworkId networkId);
virtual bool removeBuffer(const UserId &user, const BufferId &bufferId);
virtual bool renameBuffer(const UserId &user, const BufferId &bufferId, const QString &newName);
+ virtual bool mergeBuffersPermanently(const UserId &user, const BufferId &bufferId1, const BufferId &bufferId2);
virtual void setBufferLastSeenMsg(UserId user, const BufferId &bufferId, const MsgId &msgId);
virtual QHash<BufferId, MsgId> bufferLastSeenMsgIds(UserId user);