Codegen for openapi v219 (#1424)

OPENAPI_VERSION

@@ -1 +1 @@
-v216
+v219

lib/Event.php

@@ -204,6 +204,8 @@ class Event extends ApiResource
     const RECIPIENT_CREATED = 'recipient.created';
     const RECIPIENT_DELETED = 'recipient.deleted';
     const RECIPIENT_UPDATED = 'recipient.updated';
+    const REFUND_CREATED = 'refund.created';
+    const REFUND_UPDATED = 'refund.updated';
     const REPORTING_REPORT_RUN_FAILED = 'reporting.report_run.failed';
     const REPORTING_REPORT_RUN_SUCCEEDED = 'reporting.report_run.succeeded';
     const REPORTING_REPORT_TYPE_UPDATED = 'reporting.report_type.updated';

lib/Product.php

@@ -38,7 +38,7 @@
  * @property null|string $statement_descriptor Extra information about a product which will appear on your customer's credit card statement. In the case that multiple products are billed at once, the first statement descriptor will be used.
  * @property null|string|\Stripe\TaxCode $tax_code A <a href="https://stripe.com/docs/tax/tax-categories">tax code</a> ID.
  * @property string $type The type of the product. The product is either of type <code>good</code>, which is eligible for use with Orders and SKUs, or <code>service</code>, which is eligible for use with Subscriptions and Plans.
- * @property null|string $unit_label A label that represents units of this product in Stripe and on customers’ receipts and invoices. When set, this will be included in associated invoice line item descriptions.
+ * @property null|string $unit_label A label that represents units of this product. When set, this will be included in customers' receipts, invoices, Checkout, and the customer portal.
  * @property int $updated Time at which the object was last updated. Measured in seconds since the Unix epoch.
  * @property null|string $url A URL of a publicly-accessible webpage for this product.
  */