Hello,
It is a very simple question. I want to use a field from inherited model, here is my balance.py

    from odoo import models, fields, api
   
    class Balance_res_partner(models.Model):
        _name = 'res.partner'
       
       
And balance.xml

    <?xml version="1.0"?>
    <odoo>
    <record id="balance_res_partner_form_view" model="ir.ui.view">
            <field name="inherit_id" ref="base.view_partner_form"/>
            <field name="priority" eval="3"/>
            <field name="model">res.partner</field>
            <field name="arch" type="xml">
                <button name="toggle_active" position="before">
                    <button class="oe_stat_button" type="action" name="%(account.action_account_payments)d"
                                attrs="{'invisible': [('customer', '=', False)]}"
                                icon="fa-usd">
                                <field string="Balance" name="credit" widget="statinfo"/>
                    </button>
                </button>
            </field>
            </record>
        </odoo>

As you see, I don't have any 'credit' field in balance.py, so server doesn't run. The trick I want to do is to use 'credit' field from res.partner, and show its in that button value.

Help needed. Thanks in advance...