docs: def couple_nic_to_vswitch(self, userid, nic_vdev,
                                vswitch_name, active=False):
          """Couple nic to vswitch."""
          if active:
              msg = ("both in the user direct of guest %s and on "
                     "the active guest system" % userid)
          else:
              msg = "in the user direct of guest %s" % userid
          LOG.debug("Connect nic %s to switch %s %s",
                    nic_vdev, vswitch_name, msg)
          self._couple_nic(userid, nic_vdev, vswitch_name, active=active)