def load(self, model_id):
        ''' Create a model instance

        Args:
            model_id (string): the name of the model
        '''
        if model_id not in self.model_specs:
            raise ValueError('Cannot find model_id: {}'.format(model_id))
        return self.model_specs[model_id].load()
 Create a model instance

        Args:
            model_id (string): the name of the model
        
rlcard/models/registration.py