code: public static ns_conf_download_policy update(nitro_service client, ns_conf_download_policy resource) throws Exception
  	{
  		resource.validate("modify");
  		return ((ns_conf_download_policy[]) resource.update_resource(client))[0];
  	}
docs: <pre>
  Use this operation to set the polling frequency of the Netscaler configuration file.
  </pre>