This is a basic email template to put in the xml file:
<record id="email_template" model="mail.template">
<field name="name">My Email Template</field>
<field name="email_from">no-reply@domain.com</field>
<field name="subject">Email Template</field>
<field name="partner_to">${object.address_home_id.id}</field>
<field name="model_id" ref="module_name.model_model_name" />
<field name="auto_delete" eval="True" />
<field name="lang">${object.user_id.lang}</field>
<field name="body_html"><![CDATA[<div>My email template</div>]]></field>
</record>
if the module name is abc and the model name is voyelle then module_name.model_model_name should be abc.model_voyelle.
${object} is the model ${object.name} will display the attribute name of the current model.
