Harunx9

using System;

namespace MonadTest
{
    public interface IResult<T, E>
    {
        T Outcome { get; }
        E Error { get; }
    }

Harunx9

using System;

namespace MonadTest
{
    public interface IResult<E>
    {
        E Error { get; }
    }

    public abstract class Result<E> : IResult<E>

Harunx9

using System;

namespace MonadTest
{
    public interface IOptional<T> where T : class
    {
        T Value { get; }
    }

    public abstract class Optional<T> : IOptional<T>