<record id="view_activity_example" model="ir.ui.view">
<field name="name">example.activity</field>
<field name="model">activity.example</field>
<field name="arch" type="xml">
<activity string="Applicants">
<templates>
<div t-name="activity-box">
<div>
<field name="name"/>
</div>
</div>
</templates>
</activity>
</field>
</record>