more TODOs, and especially clarify the situation for input type names

generate/testdata/unexported.graphql

@@ -0,0 +1,5 @@
+query unexported($query: UserQueryInput) {
+  user(query: $query) {
+    id
+  }
+}

generate/testdata/unexported.graphql.go

@@ -0,0 +1,48 @@
+package test
+
+// Code generated by github.com/Khan/genql, DO NOT EDIT.
+
+import (
+	"context"
+
+	"github.com/Khan/genql/graphql"
+)
+
+type unexportedResponse struct {
+	User unexportedUser `json:"user"`
+}
+
+type unexportedUser struct {
+	Id string `json:"id"`
+}
+
+type userQueryInput struct {
+	Email string             `json:"email"`
+	Name  string             `json:"name"`
+	Id    string             `json:"id"`
+	Role  userQueryInputRole `json:"role"`
+	Names []string           `json:"names"`
+}
+
+type userQueryInputRole string
+
+const (
+	userQueryInputRoleStudent userQueryInputRole = "STUDENT"
+	userQueryInputRoleTeacher userQueryInputRole = "TEACHER"
+)
+
+func unexported(client *graphql.Client, query userQueryInput) (*unexportedResponse, error) {
+	variables := map[string]interface{}{
+		"query": query,
+	}
+
+	var retval unexportedResponse
+	err := client.MakeRequest(context.Background(), `
+query unexported ($query: UserQueryInput) {
+	user(query: $query) {
+		id
+	}
+}
+`, &retval, variables)
+	return &retval, err
+}