odoo13 searchpanel tree

<record id="view_department_filter" model="ir.ui.view">
            <field name="name">hr.department.search</field>
            <field name="model">hr.department</field>
            <field name="arch" type="xml">
                <search string="Departments">
                    <field name="name" string="Department"/>
                    <field name="manager_id" />
                    <filter string="Unread Messages" name="message_needaction" domain="[('message_needaction','=',True)]"/>
                    <separator/>
                    <filter string="Archived" name="inactive" domain="[('active','=',False)]"/>
                    <searchpanel>
                        <field name="company_id" groups="base.group_multi_company" icon="fa-building"/>
                        <field name="parent_id" icon="fa-users"/>
                    </searchpanel>
                </search>
             </field>
        </record>