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