using System;

public class Program

{

    public enum SubscriptionStatusType

         {

​

            /// <summary>

            /// Indicates a subscription is active, the user is subscribed and should receive benefits

            /// </summary>

            Active = 1,

         };

    public static void Main()

    {

        Console.WriteLine(Enum.IsDefined(typeof(SubscriptionStatusType), 0));

    }

}