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