using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    private TransformResult GetTransformResult() => "my Variant";       

}

​

    public class TransformResult

    {

    }

​

    public class TransformSucceeded : TransformResult

    {

      public static implicit operator TransformSucceeded(string variant) => new TransformSucceeded();

    }