original_string: protected function cleanRooms(): void
      {
          if (count($keys = $this->redis->keys("{$this->prefix}*"))) {
              $this->redis->del($keys);
          }
      }
code: protected function cleanRooms(): void
      {
          if (count($keys = $this->redis->keys("{$this->prefix}*"))) {
              $this->redis->del($keys);
          }
      }
code_tokens: protected function cleanRooms ( ) : void { if ( count ( $ keys = $ this -> redis -> keys ( "{$this->prefix}*" ) ) ) { $ this -> redis -> del ( $ keys ) ; } }
docstring: Clean all rooms.
docstring_tokens: Clean all rooms .