Here in ref=" " if we want to put id of menu defined of same model, how to put that?
<record id="server_action_pos_credit_update" model="ir.actions.server">         
 <field name="name">Confirm</field>           
<field name="model_id" ref="point_of_sale.menu_point_config_product"/>           
<field name="state">code</field>           
<field name="code">records.do_confirm()</field>     
 </record>

Could anyone help me out or suggest me anything?