def _setup_network(self, context, network_ref):
        raise NotImplementedError()
Get block device mapping for a given volume ID and instance UUID.
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/network/manager.py/NetworkManager._setup_network--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/db/api.py/block_device_mapping_get_by_instance_and_volume_id