JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr> $keys */ public static function oneOf(array $keys, string $match): ?string { return collect($keys)->flatten()->contains($match) ? $match : null; } }