public static UserVillageData AssertBuildingExists(this UserVillageData villageData, int id) => default;
public static UserVillageData AssertHasProducedGems(this UserVillageData userVillageData) => default;
public static BuildingSetup ToBuildingSetup(this UserVillageData villageData, Element element) => default;
public static UserVillageData InitCapitolDataIfNeeded(this UserVillageData data) => default;
public static double CalculateExcessGemMineHours(this UserVillageData villageData, DateTime normalizationTime) => default;
public static int CalculateProducedGemsCount(this UserVillageData villageData, DateTime time, bool throwException) => default;
// Extension methods public static Building GetBuilding(this UserVillageData villageData, BuildingTypeId buildingTypeId) => default;