def unfilter_instance(self, instance, network_info):
        raise NotImplementedError()
Make sure group_connections returns list of (lang, connections)
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/virt/libvirt/firewall.py/FirewallDriver.unfilter_instance--crossover with--dataset/ETHPy150Open rapidsms/rapidsms/rapidsms/tests/translation/tests.py/TranslationHelperTest.test_connection_grouping