def Kdiag(self, X):
        raise NotImplementedError
Don't forward init call.
dataset/ETHPy150Open SheffieldML/GPy/GPy/kern/src/kern.py/Kern.Kdiag--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_adbapi.py/DummyConnectionPool.__init__