Hello, I have this code.

class HrExpenseExtended(models.Model):

    _inherit = 'hr.expense'

    def copy_expense(self,default=None):

        default = dict(default or {})

        default['name'] = self.name + ' (Copy)'

        new_log = super(HrExpenseExtended,self).copy(default)

        return {

            # 'name': self.order_id,

            'res_model': 'hr.expense',

            'type': 'ir.actions.act_window',

            'context': {},

            'view_mode': 'form',

            'view_type': 'form',

            'res_id': new_log.id,

            'view_id': self.env.ref("hr_expense.hr_expense_view_form").id,

            'target': 'current'

        }

There is a date field in the hr.expense model, what can I do so that when the user duplicates a record, that field can be automatically increased by 1 month?

Example: If you have a record created with a date of February 10, when I duplicate it, does the duplicate record appear with March 10?

Odoo 13 community, thanks and sorry for the inconvenience.