I've recently been using good[0] , which also allows for minor data transformation. Looking at Marshmallow, it doesn't seem like it allows inline declaration of

I've recently been using good[0] , which also allows for minor data transformation. Looking at Marshmallow, it doesn't seem like it allows inline declaration of nested schemas - each level of the schema needs its own data type. [0] https://github.com/kolypto/py-good https://github.com/kolypto/py-good