odoo-13 create treeview inside treeview

Question

in odoo 10 its possible to create treeview inside treeview using:

  <field name="view_type">tree</field>

for examble:

<record id="res_partner_action_form" model="ir.actions.act_window">
  <field name="name">Partners</field>
  <field name="res_model">res.partner</field>
  <field name="view_type">tree</field>
  <field name="view_mode">tree</field>
  <field name="help" type="html">
    <p class="oe_view_nocontent_create">
    </p>
    <p>
    </p>
  </field>
</record>

and its will make view something like this:

check image

but this feature is dropped in odoo-13, is there are an alternative way to make similar view?

i tried to remove:

  <field name="view_type">tree</field>

and only use:

  <field name="view_mode">tree</field>

and it will only get a list without chlid:

enter image description here