public static bool IsValid(this EVehicleAvailability availability) => availability.EnumerationItemValueIsPositive();
public NationAvailablityPair(ENation nation, EVehicleAvailability availability) { Nation = nation; Availability = availability; }
public static bool IsValid(this EVehicleAvailability availability) => availability.EnumerationItemValueIsPositive();
public NationAvailablityPair(ENation nation, EVehicleAvailability availability) { Nation = nation; Availability = availability; }