Android Question BackupAgentHelper class in Basic4android ?

Is there any library, class or method in Basic4android that uses BackupAgentHelper class?

http://developer.android.com/reference/android/app/backup/BackupAgentHelper.html

This would be very useful to protect paid Play Store Apps because from what I understand it restores the state of keys and values set in sharedpreferences same after an application is uninstalled and reinstalled ..