server-tools/autovacuum_message_attachment/views/rule_vacuum.xml

<?xml version="1.0" encoding="utf-8"?>

<odoo>

     <record  model="ir.ui.view" id="vacuum_rule_form_view">
        <field name="name">vacuum.rule.form.view</field>
        <field name="model">vacuum.rule</field>
        <field name="arch" type="xml">
            <form string="Message Vacuum Rule">
                <sheet>
                    <group col="1">
                        <group col="4">
                            <field name="name"/>
                            <field name="ttype"/>
                            <field name="company_id"/>
                            <field name="retention_time"/>
                            <field name="active"/>
                        </group>
                        <group col="4" attrs="{'invisible': [('ttype', '!=', 'message')]}">
                            <field name="message_type" attrs="{'required': [('ttype', '=', 'message')]}"/>
                            <field name="empty_subtype"/>
                        </group>
                        <group string="Message Subtypes">
                            <field name="message_subtype_ids" nolabel="1"/>
                        </group>
                        <group attrs="{'invisible': [('ttype', '!=', 'attachment')]}">
                            <field name="filename_pattern"/>
                        </group>
                        <group string="Message Models">
                            <field name="model_ids" nolabel="1"/>
                        </group>
                        <group>
                            <field name="model_id"/>
                            <field name="model" invisible="1"/>
                            <field name="model_filter_domain" attrs="{'invisible': [('model_id', '=', False)]}" widget="domain" options="{'model': 'model'}"/>
                        </group>
                        <group string="Description">
                            <field name="description"/>
                        </group>
                    </group>
                </sheet>
            </form>
        </field>
     </record>

        <record model="ir.ui.view" id="vacuum_rule_tree_view">
        <field name="name">vacuum.rule.form.view</field>
        <field name="model">vacuum.rule</field>
            <field name="arch" type="xml">
                <tree>
                    <field name="name"/>
                    <field name="company_id"/>
                    <field name="retention_time"/>
                </tree>
            </field>
        </record>

        <record model="ir.actions.act_window" id="action_vacuum_rule">
            <field name="name">Message and Attachment Vacuum Rule</field>
            <field name="res_model">vacuum.rule</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
        </record>

        <menuitem id="menu_action_vacuum_rule" parent="base.menu_email" action="action_vacuum_rule"/>

</odoo>