public function clean()
    {
        foreach ($this->files as $file => $value) {
            $this->unlink($file);
        }
        $this->files = [];
    }
public function clean()
    {
        foreach ($this->files as $file => $value) {
            $this->unlink($file);
        }
        $this->files = [];
    }
Removes attached files.