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