def add_model(self, model):
        logger.debug(
            'adding model {} to LCM group {}'.format(model.name, self.name))
        self.models[model.name] = model
Add an MNLDiscreteChoiceModel instance.
dataset/ETHPy150Open UDST/urbansim/urbansim/models/dcm.py/MNLDiscreteChoiceModelGroup.add_model