Please refer: /Dropbox/Help OE/Qweb Report/

<t t-set="pack_operation_ids" t-value="o.pack_operation_ids"/>

    <t groups="base.group_portal" t-set="pack_operation_ids" t-value="o.pack_operation_ids.sudo()"/>

    <t t-if="pack_operation_ids" t-foreach="pack_operation_ids" t-as="pack_operation">

        <table class="table table-condensed">

        <t t-set="has_barcode" t-value="any([pack_operation.product_id and pack_operation.product_id.barcode or pack_operation.package_id for pack_operation in o.pack_operation_ids])"/>

        <t t-set="has_serial_number" t-value="o.pack_operation_ids.filtered('pack_lot_ids')" groups="stock.group_production_lot"/>

<thead>