pljson converting xml to json issue?

Question

Having issues with converting XML to JSON using pljson here is my XML

<orders>
    <order>
        <id>4781</id>
        <customer_id>2330</customer_id>
        <date_created>Tue, 22 Mar 2022 20:07:47 +0000</date_created>
        <date_modified>Tue, 22 Mar 2022 20:07:56 +0000</date_modified>
        <status_id>11</status_id>
        <custom_status>Awaiting Fulfillment</custom_status>
    </order>
</orders>

When converting it from XML to JSON, I get the JSON response why is it putting everything in brackets?

{
  "row1" : "orders",
  "row2" : ["order", ["id", "4781"], ["customer_id", "2330"], ["date_created", "Tue, 22 Mar 2022 20:07:47 +0000"], ["date_modified", "Tue, 22 Mar 2022 20:07:56 +0000"], ["status_id", "11"], ["custom_status", "Awaiting Fulfillment"]]
}

orders                  pljson_list;
l_json                  pljson; 

orders := pljson_ml.xmlstr2json('<orders>
    <order>
        <id>4781</id>
        <customer_id>2330</customer_id>
        <date_created>Tue, 22 Mar 2022 20:07:47 +0000</date_created>
        <date_modified>Tue, 22 Mar 2022 20:07:56 +0000</date_modified>
        <status_id>11</status_id>
        <custom_status>Awaiting Fulfillment</custom_status>
    </order>
</orders>');
    l_json := pljson(orders);
    l_json.print;