QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
QModelIndex indexById(quint64 id, const QModelIndex &parent = QModelIndex()) const;
QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
QModelIndex indexById(quint64 id, const QModelIndex &parent = QModelIndex()) const;