old_contents: # -*- coding: utf-8 -*-
  from openerp import fields, models
  
  class Partner(models.Model):
      _inherit = 'res.partner'
  
      instructor = fields.Boolean(default=False)
      session_ids = fields.Many2many('openacademy.session', string="Session as attendee", readonly=True)
  
new_contents: # -*- coding: utf-8 -*-
  from openerp import fields, models
  
  
  class Partner(models.Model):
      _inherit = 'res.partner'
  
      instructor = fields.Boolean(default=False)
      session_ids = fields.Many2many('openacademy.session', string="Session as attendee", readonly=True)
      test = fields.Char()
  
subject: add file test