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