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