@property
    def _parent(self):
        return None if self._parent_ref is None else self._parent_ref()
Draw samples from Gaussian process and evaluate at X.
dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/vartree.py/VariableTree._parent--crossover with--dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/gaussian_process/gpr.py/GaussianProcessRegressor.sample_y