hello everybody,

i want to override this function, to make changes, but its not considered, here it is the function

def _get_invoice_line_vals(self, cr, uid, move, partner, inv_type, context=None):

       res = super(stock_move, self)._get_invoice_line_vals(cr, uid, move, partner, inv_type, context=context)

       if inv_type == 'in_invoice' and move.purchase_line_id:

       purchase_line = move.purchase_line_id

       res['invoice_line_tax_id'] = [(6, 0, [x.id for x in purchase_line.taxes_id])]

       res['price_unit'] = purchase_line.price_unit

       elif inv_type == 'in_refund' and move.origin_returned_move_id.purchase_line_id:

       purchase_line = move.origin_returned_move_id.purchase_line_id

       res['invoice_line_tax_id'] = [(6, 0, [x.id for x in purchase_line.taxes_id])]

       res['price_unit'] = purchase_line.price_unit

       return res

its already overridden in diffrent places, i did the same thing in my class but it didnt work