def getNSA(self, network_id):
        try:
            return self.networks[network_id][1]
        except KeyError as e:
            raise error.TopologyError('No NSA for network with id %s (%s)' % (network_id, str(e)))
dataset/ETHPy150Open NORDUnet/opennsa/opennsa/topology/nml.py/Topology.getNSA/original