Update AsyncUdpConnection.php

src/Connection/AsyncUdpConnection.php

@@ -21,8 +21,10 @@ use \Exception;
 /**
  * AsyncUdpConnection.
  */
-class AsyncUdpConnection extends UdpConnection
+class AsyncUdpConnection extends UdpConnection implements \JsonSerializable, \Serializable
 {
+    use Traits\SerializeTrait;
+
     /**
      * Emitted when socket connection is successfully established.
      *