@abstractmethod
    def fit(self, X, y):
Load an existing package.
dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/linear_model/stochastic_gradient.py/BaseSGD.fit--crossover with--dataset/ETHPy150Open modflowpy/flopy/flopy/modflow/mfmlt.py/ModflowMlt.load