/** * Deletes a product option fee. * * @param int $option_id Product option ID. * @param int $id Product option fee ID. * * @return void */ public function delete_index($option_id = null, $id = null) { $option = $this->get_option($option_id); $fee = $this->get_fee($id, $option); $deleted = \Service_Product_Option_Fee::delete($fee); if (!$deleted) { throw new HttpServerErrorException(); } }