+ # we need to check network presence in both slivers, but also
+ # avoid to insert a sliver several times
+ for sliver in [ spec['s_sliver'], spec['c_sliver'] ]:
+ if sliver.name() not in managed_sliver_names:
+ tasks.append(CompleterTaskNetworkReadyInSliver(sliver))
+ # add this sliver's name in the set
+ managed_sliver_names .update ( {sliver.name()} )