So, this is related somewhat to an older Post of mine.
The input of my algorithm is a list of players (in a Nash game), each with a jump model (feasible space) and a function (payoff). Each payoff is a function of the player’s variables and is parameterized by the other players’ variables. Up to now, I was requiring the function to be defined over all_variables, but that gets really inconvenient if the variables are defined as containers. By using object_dictionary, the function could be defined over a more familiar structure, if the order was known.
Writing this made me realize maybe I should reconsider extending the Model.