sklearn_utils/preprocessing/fold_change_preprocessing.py
def fit(self, X, y):
        '''
        :X: list of dict
        :y: labels
        '''
        self._avgs = average_by_label(X, y, self.reference_label)
        return self
def fit(self, X, y):
        '''
        :X: list of dict
        :y: labels
        '''
        self._avgs = average_by_label(X, y, self.reference_label)
        return self
:X: list of dict
        :y: labels