server-tools/menu_technical_info/views/menu_technical_info_templates.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <template id="assets_backend" name="menu_technical_info assets" inherit_id="web.assets_backend">
        <xpath expr="." position="inside">
            <script src="/menu_technical_info/static/src/js/menu_technical_info.js"></script>
        </xpath>
    </template>
    <template id="menu_secondary" name="menu_technical_info menu_secondary" inherit_id="web.menu_secondary">
        <xpath expr="//div[@class='oe_secondary_menu_section']" position="attributes">
            <attribute name="t-att-data-menu">menu['id']</attribute>
        </xpath>
    </template>
</odoo>