requires_action. * * @param string $id * @param null|array $params * @param null|array|\Stripe\Util\RequestOptions $opts * * @throws \Stripe\Exception\ApiErrorException if the request fails * * @return \Stripe\Refund */ public function expire($id, $params = null, $opts = null) { return $this->request('post', $this->buildPath('/v1/test_helpers/refunds/%s/expire', $id), $params, $opts); } }