How to check if connection persists.

Hello,

Typically when using TCP based frameworks I find myself wanting to check if my connection to the TCP server is still active. Usually I can just pass a callback like "on_connect"/"on_disconnect" or there is such a method like "is_connected" that can assist me with this.

Is there a way I can obtain the same functionality with µHAL?

Best,
Fábio Carneiro