big refactor to put the codegen onto methods of an object

example/generated.go

@@ -14,6 +14,12 @@ type getViewerResponse struct {
 	} `json:"viewer"`
 }
 
+type getUserResponse struct {
+	User *struct {
+		TheirName *string `json:"theirName"`
+	} `json:"user"`
+}
+
 func getViewer(ctx context.Context, client *graphql.Client) (*getViewerResponse, error) {
 	var retval getViewerResponse
 	err := client.MakeRequest(ctx, `
@@ -26,12 +32,6 @@ query getViewer {
 	return &retval, err
 }
 
-type getUserResponse struct {
-	User *struct {
-		TheirName *string `json:"theirName"`
-	} `json:"user"`
-}
-
 // getUser gets the given user's name from their username.
 func getUser(ctx context.Context, client *graphql.Client, login string) (*getUserResponse, error) {
 	variables := map[string]interface{}{