public static IRequestExecutorBuilder AddTypeMergeHandler <T>(
            this IRequestExecutorBuilder builder)
            where T : class, ITypeMergeHandler
        {
            if (builder == null)
            {
                throw new ArgumentNullException(nameof(builder));
            }

            return(builder.AddTypeMergeRule(
                       SchemaMergerExtensions.CreateTypeMergeRule <T>()));
        }