I have JSON object like this {key: [ array of json object], key2: [array2 of json object] } How can I parse this in PDF? Should this work?

<#list delivery_items as delivery_item>

    <#assign keys = delivery_item?keys>
    <#list keys as key>
        ${delivery_item[key]};
    </#list>
</#list>

not 100% sure, have you tried printing keys to see what you have?