It's not possible to serialize derrived type without any parameters

[nicloay]

If I have 2 types like Type1 and Type2 which implement a common interface it's not possible to deserialize document if one of them has no extra parameters

list:
  - !type1
    param: 9999
  - !type2
  - !type1
    param: 3333

as type2 doesn't have parameter the result list will have only 2 elements of type1