use enum syntax in model parameters
use enum syntax in model parameters

jfederico/Hilary,stuartf/Hilary,Orodan/Hilary,Orodan/Hilary,stuartf/Hilary,mrvisser/Hilary,jfederico/Hilary,simong/Hilary,timdegroote/Hilary,simong/Hilary,ExC0d3/Hilary,nicolaasmatthijs/Hilary,ExC0d3/Hilary,mrvisser/Hilary,nicolaasmatthijs/Hilary,timdegroote/Hilary