Qt::ItemFlags flags(const QModelIndex &index) const;
bool setData(const QModelIndex &index, const QVariant &value, int role);
bool insertRows(int row, int count, const QModelIndex &parent);
Qt::ItemFlags flags(const QModelIndex &index) const;
bool setData(const QModelIndex &index, const QVariant &value, int role);
bool insertRows(int row, int count, const QModelIndex &parent);