don't notify about changes in 'used-as-an-argument-only' StateVariables
don't notify about changes in 'used-as-an-argument-only' StateVariables

coherence-project/Coherence,opendreambox/python-coherence,unintended/Cohen,sreichholf/python-coherence,coherence-project/Coherence,ismaelgaudioso/Coherence,furbrain/Coherence,opendreambox/python-coherence,furbrain/Coherence,unintended/Cohen,sreichholf/python-coherence,ismaelgaudioso/Coherence