in my case I have an object relay.point and i used inherits to stock.warehouse 

the objectif i want when i create my relay.point automatically create to me stock.warehouse instance 

class RelayPoint(models.Model):
    _name = 'relay.point'
    _inherit = ['logistic.entity', 'mail.thread', 'mail.activity.mixin']
    _inherits = {'stock.warehouse': 'warehouse_id'}
    _description = 'Relay Point'

    type = fields.Selection([('value1', 'Value 1'), ('Value2', 'Value 2')], string='Type')
    warehouse_id = fields.Many2one('stock.warehouse', string='Related Warehouse',
                                   ondelete='restrict', required=False,
                                   auto_join=True, help='Warehouse-related data of the Relay point')
​

i have also :

class StockWarehouse(models.Model):
    _inherit = 'stock.warehouse'

    relay_point_ids = fields.One2many(
        'relay.point', 'warehouse_id',
        string='Relay Point',
        auto_join=True)

when i want to create my relay.point instance i get msg that the stock.warehouse have a required code 

so i want to passe in my create the code and the name of warehouse 

any ideas please ?