如果選擇了付款方式，我想更改感謝信息，我已經實現了這一點并且正在工作，但仍然不知道下面代碼中需要這一行，我需要嗎？add_filter('woocommerce_thankyou_order_received_text', 'woo_change_order_received_text', 20, 2 );function woo_change_order_received_text( $str, $order ) {$order = wc_get_order( $order_id ); // do i need this line, it works without it do i need it ????????    if( 'bacs' == $order->get_payment_method() ) {    $new_str = $str . '<br><br><span style="display:block;font-weight:bold; text-align:center"> Please after your payment is done make sure to visit </span><br>';    return $new_str;    }    return $str;}我需要這條線嗎，沒有它也可以工作我需要嗎？$order = wc_get_order( $order_id );