* See: https://github.com/phpredis/phpredis#scan
*
* @param int &$iterator
- * @param string $pattern
- * @param int $count
+ * @param string|null $pattern
+ * @param int|null $count
* @return array $res
*/
public function scan( &$iterator, $pattern = null, $count = null ) {
*
* @param string $key
* @param int &$iterator
- * @param string $pattern
- * @param int $count
+ * @param string|null $pattern
+ * @param int|null $count
* @return array $res
*/
public function sScan( $key, &$iterator, $pattern = null, $count = null ) {
*
* @param string $key
* @param int &$iterator
- * @param string $pattern
- * @param int $count
+ * @param string|null $pattern
+ * @param int|null $count
* @return array $res
*/
public function hScan( $key, &$iterator, $pattern = null, $count = null ) {
*
* @param string $key
* @param int &$iterator
- * @param string $pattern
- * @param int $count
+ * @param string|null $pattern
+ * @param int|null $count
* @return array $res
*/
public function zScan( $key, &$iterator, $pattern = null, $count = null ) {