def get_discount_node_id(self, node_id, settings):
        discount = math.exp(-settings.discount_param * self.max_split_costs[node_id])
        return discount
Projects the `instance` onto the model, retrieving the optimal
dataset/ETHPy150Open balajiln/mondrianforest/src/mondrianforest.py/MondrianTree.get_discount_node_id--crossover with--dataset/ETHPy150Open menpo/menpo/menpo/model/vectorizable.py/VectorizableBackedModel.project