Features for `test_prog::Character`:

 - test_prog::character::Character::_age
   private var _age: Int
   test_location

 - test_prog::character::Character::_career
   # The current `Career` of the character.
   private var _career: nullable Career
   test_location

 - test_prog::character::Character::_health
   # The current `health` of the character.
   private var _health: Int
   test_location