def setUpClass(self):
        """
        Set up the unit test by loading the dataset and training a model.
        """
        # Load data and train model
        scikit_data = load_boston()
        self.scikit_data = scikit_data
        self.X = scikit_data["data"]
        self.target = scikit_data["target"]
        self.feature_names = scikit_data["feature_names"]
        self.output_name = "target"

        Set up the unit test by loading the dataset and training a model.
        
coremltools/test/xgboost_tests/test_decision_tree_regression_numeric.py