public ReindeerInZone(Reindeer reindeer, string countryCode, string cityName, GeoPoint center, Radius radius)
: base(countryCode, cityName, center, radius)
{
if (!Enum.IsDefined(typeof(Reindeer), reindeer))
{
throw new InvalidEnumArgumentException(nameof(reindeer), (int)reindeer, typeof(Reindeer));
}
Reindeer = reindeer;
}