public function __construct(Asso $asso, $custom_header_title = '', $custom_header_string = '')
{
parent::__construct(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true);
$this->asso = $asso;
$this->custom_header_title = $custom_header_title;
$this->custom_header_string = $custom_header_string;
}
