How to get an Email Program's smart list id?
Dear community,
When creating an email program, you often define its audience using a smart list. 
Clicking on the number of people in the audience section opens a new browser tab with the people in that smart list - the url will look like https://app-nld123.marketo.com/?satellite=1#SL12345A1! . Is there a way to get the smart list id 12345 programmatically, in order to query it for the members? I've tried to get smart lists by program folder ids, but this does not seem to include these "hidden" assets.
Goal: I want to determine audience sizes for several email programs, before the sends happen, in batch and without going into each program manually. (Maybe there's another way?)
Thanks! 🙂