def is_api_filter(self, filter_field):
        if self.filter_type == 'server':
            for choice in self.filter_choices:
                if (choice[0] == filter_field and len(choice) > 2 and
                        choice[2] is True):
                    return True
        return False
Predict the multinomial probability vector at a grid of points, Z_new
dataset/ETHPy150Open openstack/horizon/horizon/tables/actions.py/FilterAction.is_api_filter--crossover with--dataset/ETHPy150Open HIPS/pgmult/pgmult/gp.py/_MultinomialGPBase.collapsed_predict