(self, X_test)
Predicts for a given set of test data points the mean and variance of its target values

        Parameters
        ----------
        X_test: np.ndarray (N, D)
            N Test data points with input dimensions D

        Returns
        ----------
        mean: ndarray (N,)
            Predictive mean of the test data points
        var: ndarray (N,)
            Predictive variance of the test data points
Predicts for a given set of test data points the mean and variance of its target values
Predicts for a given set of test data points the mean and variance of its target values
def predict(self, X_test):
        """
        Predicts for a given set of test data points the mean and variance of its target values

        Parameters
        ----------
        X_test: np.ndarray (N, D)
            N Test data points with input dimensions D

        Returns
        ----------
        mean: ndarray (N,)
            Predictive mean of the test data points
        var: ndarray (N,)
            Predictive variance of the test data points
        """
        pass
def predict ( self , X_test ) : pass