def opt_variant(self, arg):
        self['variants'].append(Variants.lookupByValue(arg))
Select the path based on source (iBGP/eBGP) peer.
dataset/ETHPy150Open ClusterHQ/flocker/admin/acceptance.py/CommonOptions.opt_variant--crossover with--dataset/ETHPy150Open osrg/ryu/ryu/services/protocols/bgp/processor.py/_cmp_by_asn