DRY with schema of multiple types implementing multiple interfaces

[bernardo-amorim]

Suppose I have the following schema for a subgraph:

interface InterfaceA {
   aField: String
}

interface InterfaceB {
   bField: String
}

type TypeX implements InterfaceA {
   aField: String @override(from: "my-other-subgraph")
}

type TypeY implements InterfaceA, InterfaceB {
   aField: String @override(from: "my-other-subgraph")
   bField: String @override(from: "my-other-subgraph")
}

type TypeZ implements InterfaceB {
   bField: String @override(from: "my-other-subgraph")
}

The resolvers for aField and bField have the same implementation for all types that implement it.
How can I implement that in TypeGraphQL with maximum DRY? Ideally, I would have classes for InterfaceA and InterfaceB and for their resolvers, and classes with empty bodies for the types, but I can't find a way of doing that