Recurly_Invoice::refund PHP Méthode

    public function refund($line_items, $refund_apply_order = 'credit')
    {
        if (isset($line_items['uuid'])) {
            $line_items = array($line_items);
        }
        $doc = $this->createDocument();
        $root = $doc->appendChild($doc->createElement($this->getNodeName()));
        $root->appendChild($doc->createElement('refund_apply_order', $refund_apply_order));
        $line_items_node = $root->appendChild($doc->createElement('line_items'));
        foreach ($line_items as $line_item) {
            $adjustment_node = $line_items_node->appendChild($doc->createElement('adjustment'));
            $adjustment_node->appendChild($doc->createElement('uuid', $line_item['uuid']));
            $adjustment_node->appendChild($doc->createElement('quantity', $line_item['quantity']));
            $adjustment_node->appendChild($doc->createElement('prorate', $line_item['prorate'] ? 'true' : 'false'));
        }
        return $this->createRefundInvoice($this->renderXML($doc));
    }