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