#include <QtCore/qabstractitemmodel.h>
#ifndef QABSTRACTITEMMODEL_H
class QAbstractItemModel: public QObject{
   /* Some contents are skipped to improve readability */
   public: virtual bool setItemData(class QModelIndex const & index, class QMap < int, class QVariant > const & roles);
   /* ... */
};
#endif // QABSTRACTITEMMODEL_H