Using jung frame work plugin by mbeddr

Hi, I want to use Graph Diagrams (com.mbeddr.mpsutil.jung) plugin by mbeddr in my own language. I want to use it to implement my own graphical view of my nodes. In the description on mbeddr website they said in order to use this plugin, I need to implement the interface IJGraphProvider and implement a method that creates the graph.

What I'm trying to do is, that I have a class in my plugin aspect, and I want that class to implement the interface IJGraphProvider and implement a method that creates the graph but I couldn't see IJGraphProvider in the intensions list. Although I have added all the required dependencies.

what am I missing here?

Thanks!