Need example for Swoole\Coroutine\Server

[deba12]

Hello,
the Swoole\Coroutine\Server documentations says

Differences from the Server module:

Dynamically creating and destroying - ports can be dynamically listened to, and servers can be dynamically closed during runtime.
The process of handling connections is fully synchronous, allowing programs to sequentially handle Connect, Receive, and Close events.

could you please give example for Swoole\Coroutine\Server how open/close new ports during runtime ?
Or example how to listen on multiple ports.

Thanks

[matyhtf]

https://github.com/swoole/swoole-src/blob/master/examples/coroutine/server/tcp.php