GraphQL type inheritance - DTO class with parent class in framework package

[blevine]

Using graphql-spqr 0.12.3.

I have a GraphQL type (DTO) class A that extends class B. At the moment, class A does not define any methods and inherits everything from class B. class B is in a framework package. I don't want the schema generator to consider all classes in the framework package. What is the correct way to have the schema generator incorporate class A into the schema and have the schema generator recognize class B?

Additional info:

I tried adding the framework package to withBasePackages and I get a couple of errors of the following form:

"Comparator_MyInterface" must define one or more fields.