public StarWarsQuery(StarWarsData data)
        {
            Name = "Query";

            Field <CharacterInterface>("hero", resolve: context => data.GetDroidByIdAsync("3"));
            Field <HumanType>(
                "human",
                arguments: new QueryArguments(
                    new QueryArgument <NonNullGraphType <StringGraphType> > {
                Name = "id", Description = "id of the human"
            }
                    ),
                resolve: context => data.GetHumanByIdAsync(context.GetArgument <string>("id"))
                );
        }
        public StarWarsMutation(StarWarsData data)
        {
            Name = "Mutation";

            Field <HumanType>(
                "createHuman",
                arguments: new QueryArguments(
                    new QueryArgument <NonNullGraphType <HumanInputType> > {
                Name = "human"
            }
                    ),
                resolve: context =>
            {
                var human = context.GetArgument <Human>("human");
                return(data.AddHuman(human));
            }
                );
        }