I am using framework way to create an algorithm. For example I have 3 universes, A B and C, and I used AddUniverseSelection(). When I am in AlphaModel, I would like to know the list of securities from A universe. I know I can loop like this in def Update(self, algorithm, data):

for kvp in algorithm.UniverseManager:
symbol = kvp.Key
universe = kvp.Value

But I don't know which universe is A, which is B and so on...

 

How to get the target universe? Or is there a way to get the target universe security list?

Thank you very much.