using System;

using System.Collections.Generic;

using OneOf;

public class Program

{

    public enum eUnit

    {

        Villager,

        Warrior,

        Wizard,

    }

    public enum eVehicle

    {

        Car,

        Train,

        Helicopter,

    }

    public enum eItem

    {

        Apple,

        Steak,

        Pizza,

    }

    public static void Main()

    {

        List<OneOf<eUnit, eVehicle, eItem>> myList = new List<OneOf<eUnit, eVehicle, eItem>>()

        {

            eUnit.Warrior, eVehicle.Car

        };

        myList[0].Switch(

            unit => Console.WriteLine("Unit"),

            vehicle => Console.WriteLine("Vehicle"),

            item => Console.WriteLine("Item")

        );

    }

}