def get_vif_by_mac_address(self, context, mac_address):
        raise NotImplementedError()
Create a NetworkX Graph for the tree specified by the
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/network/base_api.py/NetworkAPI.get_vif_by_mac_address--crossover with--dataset/ETHPy150Open networkx/networkx/networkx/generators/nonisomorphic_trees.py/_layout_to_graph