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