flectra/addons/website_payment/views/website_payment_templates.xml

<?xml version="1.0" encoding="utf-8"?>
<flectra>
    <template id="header_footer_custom_payment" inherit_id="website.footer_default" customize_show="True" active="False" name="Payment Icons">
        <xpath expr="//div[@id='info']" position="inside">
            <h4 class="payment_method_title">Payment Icons</h4>
            <ul class="payment_method_list list-inline">
                <t t-foreach="request.website.payment_icons()" t-as="icon">
                    <li>
                        <span t-field="icon.image" t-options='{"widget": "image", "alt-field": "name"}' />
                    </li>
                </t>
            </ul>
        </xpath>
    </template>
</flectra>