I am working on porting an FCA library from VW to Pharo.
In VW, classes LatticeNode and Lattice inherit from a class: Pimon.Figure.

The corresponding classes in pharo, already ported, inherit from ProtoObject.
My question: Is there an easy workaround (that is inheriting from a similar class in pharo doing the work of Pimon.Figure) or do I need to rewrite these Lattice and LatticeNode classes?

thanx

Usman