title: Programmatically Labeling a Signal in Simulink
body: <p>I'm attempting to write a script that generate a basic Simulink model and I'd like to know if there's a way to programmatically label a signal line.  I've looked at the add_line function (which is what I'm using to add the lines), but I don't see an option for defining anything like a Name or Label property.</p>
  
  <p>Is there a way to do this?</p>