lib/graphql/schema/union.rb in graphql-1.8.0.pre10 vs lib/graphql/schema/union.rb in graphql-1.8.0.pre11

@@ -24,9 +24,13 @@
             type_defn.resolve_type = method(:resolve_type)
           end
           type_defn.metadata[:type_class] = self
           type_defn
         end
+
+        def kind
+          GraphQL::TypeKinds::UNION
+        end
       end
     end
   end
 end