void debug_rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
void debug_rowsInserted(const QModelIndex &parent, int start, int end);
void debug_rowsRemoved(const QModelIndex &parent, int start, int end);
void debug_rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
void debug_rowsInserted(const QModelIndex &parent, int start, int end);
void debug_rowsRemoved(const QModelIndex &parent, int start, int end);