I have some selection field such as: 

salutation = fields.Selection(

        [('Mr.','Mr.'),

         ('Mrs.','Mrs.'), 

         ('Ms.','Ms.')],

        string='Salutation')

Now I want to add demo data in a record for this field, but I can't find the right syntax. I've tried used eval, but without success. 

<record id="object0" model="my.model">

    <field name="salutation" eval="[('Mr.','Mr.')]"/>

</record>

Can anyone give me a hint?