readAttributeTimeZoneDatabase(completion:)
Declaration
func readAttributeTimeZoneDatabase(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeTimeZoneDatabase() async throws -> NSNumberfunc readAttributeTimeZoneDatabase(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeTimeZoneDatabase() async throws -> NSNumber