code: public static base_responses update(nitro_service client, nd6ravariables resources[]) throws Exception {
  		base_responses result = null;
  		if (resources != null && resources.length > 0) {
  			nd6ravariables updateresources[] = new nd6ravariables[resources.length];
  			for (int i=0;i<resources.length;i++){
  				updateresources[i] = new nd6ravariables();
  				updateresources[i].vlan = resources[i].vlan;
  				updateresources[i].ceaserouteradv = resources[i].ceaserouteradv;
  				updateresources[i].sendrouteradv = resources[i].sendrouteradv;
  				updateresources[i].srclinklayeraddroption = resources[i].srclinklayeraddroption;
  				updateresources[i].onlyunicastrtadvresponse = resources[i].onlyunicastrtadvresponse;
  				updateresources[i].managedaddrconfig = resources[i].managedaddrconfig;
  				updateresources[i].otheraddrconfig = resources[i].otheraddrconfig;
  				updateresources[i].currhoplimit = resources[i].currhoplimit;
  				updateresources[i].maxrtadvinterval = resources[i].maxrtadvinterval;
  				updateresources[i].minrtadvinterval = resources[i].minrtadvinterval;
  				updateresources[i].linkmtu = resources[i].linkmtu;
  				updateresources[i].reachabletime = resources[i].reachabletime;
  				updateresources[i].retranstime = resources[i].retranstime;
  				updateresources[i].defaultlifetime = resources[i].defaultlifetime;
  			}
  			result = update_bulk_request(client, updateresources);
  		}
  		return result;
  	}
docs: Use this API to update nd6ravariables resources.