def __init__(
        self,
        classifier: ScikitlearnDecisionTreeClassifier,
        offset: float = 0.001,
        verbose: bool = True,
    ) -> None:
        """
        :param classifier: A trained scikit-learn decision tree model.
        :param offset: How much the value is pushed away from tree's threshold.
        :param verbose: Show progress bars.
        """
        super().__init__(estimator=classifier)
        self.offset = offset
        self.verbose = verbose
        self._check_params()

        :param classifier: A trained scikit-learn decision tree model.
        :param offset: How much the value is pushed away from tree's threshold.
        :param verbose: Show progress bars.
        
art/attacks/evasion/decision_tree_attack.py