QAbstractItemModel::resetInternalData() doesn't exist in Qt5

[MaximAlien]

Hello,

I'm porting Qt 4 application to Qt 5. There are some changes in classes structure and their name. I have an issue in my QAbstractItemModel. I use:
@void QAbstractItemModel::resetInternalData () [protected slot]@ but it's no longer available in Qt 5. What's the best solution for replacing this slot?

Thanks in advance,
Maxim.