JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrcallback = $callback; } public function current(): mixed { return ($this->callback)(parent::current(), parent::key()); } }