using System;

public class Program

{

    public static void Main()

    {

        Test t = new Test();

        int value = (int)t;

        Console.WriteLine(value);

    }

}

​

public class Test

{

    public int testValue {get; } = 2;

    public static bool operator ==(Test t1, int value) => t1.testValue == value;

    public static bool operator !=(Test t1, int value) => t1.testValue != value;

    public static explicit operator int(Test t) => t.testValue;

}