RiderCandidates.cs

using System;
using LanguageExt;
using static LanguageExt.Prelude;

namespace RiderCandidates
{
    class Program
    {
        static void Main(string[] args)
        {
            Seq<Aff<int>> ma = default;
            var res = ma.Sequence(ToString);
        }

        static Aff<string> ToString(int x) =>
            SuccessAff(x.ToString());
    }
}