@abc.abstractmethod
    def _join_path(self, *parts):
Retrieve libvirt domain object for an instance.
dataset/ETHPy150Open openstack/taskflow/taskflow/persistence/path_based.py/PathBasedConnection._join_path--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/virt/libvirt/host.py/Host.get_domain