This value transformer returns an object created by attempting to unarchive the data in the NSData object passed as the value. The archived object must be created using keyed archiving in order to be unarchived and archived with this transformer.
The reverse transformation returns an NSData instance created by archiving the value using keyed archiving. The archived object must implement the NSCoding protocol using keyed archiving in order to be unarchived and archived with this transformer.
Available in Mac OS X v10.5 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)