code: public static ns_conf_download_policy do_poll(nitro_service client, ns_conf_download_policy resource) throws Exception
  	{
  		return ((ns_conf_download_policy[]) resource.perform_operation(client, "do_poll"))[0];
  	}
docs: <pre>
  Use this operation to poll all ns.conf file from NetScaler and updated the database.
  </pre>