github.com/HaswinVidanage/gqlgen@v0.8.1-0.20220609041233-69528c1bf712/example/type-system-extension/schemas (about) enum-extension.graphql input-object-extension.graphql interface-extension.graphql object-extension.graphql scalar-extension.graphql schema-extension.graphql schema.graphql type-extension.graphql union-extension.graphql