odoo16/addons/website_event_track/data/event_track_visitor_demo.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo><data>

    <record id="event_7_track_2_visitor_0" model="event.track.visitor">
        <field name="track_id" ref="website_event_track.event_7_track_2"/>
        <field name="visitor_id" ref="website.website_visitor_0"/>
        <field name="is_wishlisted" eval="True"/>
    </record>
    <record id="event_7_track_2_visitor_2" model="event.track.visitor">
        <field name="track_id" ref="website_event_track.event_7_track_2"/>
        <field name="visitor_id" ref="website.website_visitor_2"/>
        <field name="is_wishlisted" eval="True"/>
    </record>

</data></odoo>