code: public static base_response update(nitro_service client, vpnvserver resource) throws Exception {
  		vpnvserver updateresource = new vpnvserver();
  		updateresource.name = resource.name;
  		updateresource.ipv46 = resource.ipv46;
  		updateresource.authentication = resource.authentication;
  		updateresource.doublehop = resource.doublehop;
  		updateresource.icaonly = resource.icaonly;
  		updateresource.maxaaausers = resource.maxaaausers;
  		updateresource.downstateflush = resource.downstateflush;
  		updateresource.listenpolicy = resource.listenpolicy;
  		updateresource.listenpriority = resource.listenpriority;
  		updateresource.tcpprofilename = resource.tcpprofilename;
  		updateresource.httpprofilename = resource.httpprofilename;
  		updateresource.comment = resource.comment;
  		updateresource.appflowlog = resource.appflowlog;
  		updateresource.icmpvsrresponse = resource.icmpvsrresponse;
  		updateresource.netprofile = resource.netprofile;
  		updateresource.cginfrahomepageredirect = resource.cginfrahomepageredirect;
  		updateresource.maxloginattempts = resource.maxloginattempts;
  		updateresource.failedlogintimeout = resource.failedlogintimeout;
  		return updateresource.update_resource(client);
  	}
docs: Use this API to update vpnvserver.