code: public static base_response update(nitro_service client, nd6ravariables resource) throws Exception {
  		nd6ravariables updateresource = new nd6ravariables();
  		updateresource.vlan = resource.vlan;
  		updateresource.ceaserouteradv = resource.ceaserouteradv;
  		updateresource.sendrouteradv = resource.sendrouteradv;
  		updateresource.srclinklayeraddroption = resource.srclinklayeraddroption;
  		updateresource.onlyunicastrtadvresponse = resource.onlyunicastrtadvresponse;
  		updateresource.managedaddrconfig = resource.managedaddrconfig;
  		updateresource.otheraddrconfig = resource.otheraddrconfig;
  		updateresource.currhoplimit = resource.currhoplimit;
  		updateresource.maxrtadvinterval = resource.maxrtadvinterval;
  		updateresource.minrtadvinterval = resource.minrtadvinterval;
  		updateresource.linkmtu = resource.linkmtu;
  		updateresource.reachabletime = resource.reachabletime;
  		updateresource.retranstime = resource.retranstime;
  		updateresource.defaultlifetime = resource.defaultlifetime;
  		return updateresource.update_resource(client);
  	}
docs: Use this API to update nd6ravariables.