Alabme

Hi. I wanted to map one class to another with protected properties, say: UserA::$firstName to UserB::$givenName. ``` php Papper::createMap('UserA', 'UserB')->forMember('givenName', new MapFrom('firstName')); ``` But i've got exception saying "Unable to...

It would be nice to have some documentation here since I see potential in this library but using it in the dark is a pain.