@abc.abstractproperty
    def grub(self):
Kalman smoothing
dataset/ETHPy150Open openstack/bareon/bareon/drivers/data/base.py/GrubBootloaderDataDriverMixin.grub--crossover with--dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/tsa/statespace/mlemodel.py/MLEModel.smooth