Children for `test_prog::Career`:

 + test_prog::Alcoholic
   # Alcoholics are good to nothing escept taking punches.
   class Alcoholic
   test_location

 + test_prog::Magician
   # Magicians know magic and how to use it.
   class Magician
   test_location

 + test_prog::Warrior
   # Warriors are good for fighting.
   class Warrior
   test_location