No new fields.

• create(self, values)
  @api.model

• product_id Many2one → product.product
  comodel_name='product.product' ondelete='cascade' string='Product'

No public methods.

• cost_method Selection
  company_dependent=True copy=True help='Standard Price: The cost price is manually updated at the end of a specific period (usually every year).\nAverage Price: The cost price is recomputed at each incoming shipment and used for the product valuation.\nReal Price: The cost price displayed is the price of the last outgoing product (will be use in case of inventory loss for example).' required=True selection='_get_selection_cost_method' string='Costing Method'
• standard_price Float
  company_dependent=True digits=dp.get_precision('Product Price') groups='base.group_user' help='Cost price of the product variant used for standard stock valuation in accounting and used as a base price on purchase orders. Expressed in the default unit of measure of the product.' string='Cost Price'

• create(self, values)
  @api.model
• write(self, values)
  @api.multi

No new fields.

• create_variant_ids(self)
  @api.multi
  Write in the new created variants the current template cost price.
• write(self, vals)
  @api.multi
  Propagate to the variants the template cost price (if modified).