umqtt.simple: Subscribe and check_msg

Good evening,

Maybe I'm suffering from not seeing the obvious, but how do I use subscriptions asynchronously? As far as I can see in the source code, the "subscribe"-routine ends in an endless "while 1:" loop with a "wait_msg()" inside.
This corresponds with my experience that once I call subscribe(), the rest of my script (except the callback function) is not executed. I've tried the examples too, removing everything after "subscribe(...)" does not seem to make any noticeable difference...

Can somebody help me out here? Maybe I've just been staring at the screen too long...

Cheers!

Beginne damit, den Quellcode von umqtt.simple im Umfeld von subscribe(), wait_msg() und check_msg() zu lesen, und vergleiche anschließend die vorhandenen Beispiele. Kläre den vorgesehenen asynchronen Ablauf für Abonnements und aktualisiere die entsprechende Dokumentation oder das Beispiel, sodass das erwartete Verhalten nach dem Abonnieren ausdrücklich beschrieben ist.