python function to return multi views in odoo

In this blog we will explain how to create python function to return multi views in odoo for one model

For an example created custom tree view , custom form view and custom kanban view for the "res.partner" model with the bellow ids

tree view id = "res_partner_custom_tree_view"
form view id = "res_partner_custom_form_view"
kanban view id = "res_partner_custom_kanban_view"

and we created smart button on another model view which must call python function to open "res.partner" model with the previous views , so this function can be just like bellow  

def display_partners(self):
        tree_view_id = self.env.ref('module_name.res_partner_custom_tree_view')
        form_view_id = self.env.ref('module_name.res_partner_custom_form_view')
        kanban_view_id = self.env.ref('module_name.res_partner_custom_kanban_view')

        return {
            'type': 'ir.actions.act_window',
            'name': "string",
            'res_model': 'res.partner',
            'domain': [('id', 'in',self.get_partner_ids().ids)],
            'view_mode': 'tree,form',
            'views':[(tree_view_id.id,'tree'),(form_view_id.id,'form'),(,(form_view_id.id,'form').id,'kanban')],
            'target': 'current',
        }