def _eval_model(self):
        """
        Convenience method for evaluating the model with the current parameters

        :return: named tuple with results
        """
        arguments = self._x_grid.copy()
        arguments.update({param: param.value for param in self.model.params})
        return self.model(**key2str(arguments))
Convenience method for evaluating the model with the current parameters

        :return: named tuple with results