#include <QtCore/qabstractitemmodel.h>
#ifndef QABSTRACTITEMMODEL_H
class QAbstractItemModel: public QObject{
   /* Some contents are skipped to improve readability */
   protected: bool decodeData(int row, int column, class QModelIndex const & parent, class QDataStream& stream);
   /* ... */
};
#endif // QABSTRACTITEMMODEL_H