@abc.abstractmethod
    def filter(self, *args, **kwargs):
        raise NotImplementedError
Nova data collector method.
dataset/ETHPy150Open adewes/blitzdb/blitzdb/queryset.py/QuerySet.filter--crossover with--dataset/ETHPy150Open MirantisWorkloadMobility/CloudFerry/cloudferry_devlab/cloudferry_devlab/tests/data_collector.py/DataCollector.nova_collector