def setSyntax(self, syntax):
        """Choose smart indentation algorithm according to syntax"""
        self._smartIndenter = self._chooseSmartIndenter(syntax)
def _cost_gp(self,x):
        """
        Predicts the time cost of evaluating the function at x.
        """
        m, _, _, _ = self.cost_model.predict_withGradients(x)
        return np.exp(m)