inline QString channelKey(const QString &channel) const { return _channelKeys.value(channel.toLower(), QString()); }
inline QStringList persistentChannels() const { return _channelKeys.keys(); }
inline QString channelKey(const QString &channel) const { return _channelKeys.value(channel.toLower(), QString()); }
inline QStringList persistentChannels() const { return _channelKeys.keys(); }