QtInstaller framework how to hide a page

Question

According to QtInstaller documentation , we can hide a default page , by setting their visibility to false:

    installer.setDefaultPageVisible(QInstaller.TargetDirectory, false);
    installer.setDefaultPageVisible(QInstaller.ComponentSelection, false);
    installer.setDefaultPageVisible(QInstaller.LicenseCheck, false);

But this is not working with QtInstaller version 4.4 , any clues?