ConnectionResolverBase

Specialized resolver base for connection field resolvers. Extends FieldResolverBase with the additional constraint that A is a ConnectionArguments, exposing pagination utilities.

R's upper bound is Connection<*, *>? so the generator can emit nullable connection return types (e.g. FooConnection?) without tripping the bound check.

This interface exists to support the testing framework only. Other framework code should depend on ResolverBase instead. Generated base classes implement both directly.