Produces the consumer-facing type for an extended builder: the base builder intersected with its fixed extension methods, with withExtension / getExtension overridden to never so they don't appear as callable in consumer code.
withExtension
getExtension
never
Produces the consumer-facing type for an extended builder: the base builder intersected with its fixed extension methods, with
withExtension/getExtensionoverridden toneverso they don't appear as callable in consumer code.