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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def predict(self, X):
 """Predict risk score of experiencing an event. Higher scores indicate shorter survival (high risk), lower scores longer survival (low risk). Parameters X : array-like, shape = (n_samples, n_features) The input samples. Returns ------- y : ndarray, shape = (n_samples,) Predicted risk. """

        K = self._get_kernel(X, self.X_fit_)
        pred = -numpy.dot(self.coef_, K.T)
        return pred.ravel()