Carla Sumo co-simulation with synch'ed traffic lights

I saw a comment in the 0.9.9 release notes that a Sumo c-simulation now supports synchronized traffic lights, with either Carla or Sumo being able to control the traffic lights. However, there was a comment that the released maps for Co-simulation don’t include traffic lights (which I verified myself - I’m running Carla 0.9.10 release).

Can anyone tell me how to get the Sumo net files with traffic lights added?