{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"//"}]}
                    // For now we only handle expansion for a tuple of enums. Here
                    Some(Adt::Enum(e)) => Some(ExtendedEnum::enum_(sema.db, e, &ty, self_ty)),
                    // we map non-enum items to None and rely on `collect` to