def list_zones(self):

        return [zone['zone'] for zone in list(self._zones.values())]
Should filter nodes acording to their virt value
dataset/ETHPy150Open apache/libcloud/libcloud/dns/drivers/dummy.py/DummyDNSDriver.list_zones--crossover with--dataset/ETHPy150Open edelight/kitchen/kitchen/backends/tests.py/TestData.test_filter_nodes_combined