public static IGraphQlResultJoinedFactory <TInputType, TJoinedType> Join <TInputType, TJoinedType>(this IGraphQlAccepts <TInputType> accepts, GraphQlJoin <TInputType, TJoinedType> join)
 {
     return(accepts.Original().Join(join));
 }
        public TOutput Get <TOutput>(GraphQlJoin <TOriginal, TOutput> join)
        {
#nullable disable
            return((TOutput)Joins[join]);