Fix nullability

parent aa0cf547
...@@ -80,7 +80,7 @@ extern NSString *const BUYPaymentProviderDidCompleteCheckoutNotificationKey; ...@@ -80,7 +80,7 @@ extern NSString *const BUYPaymentProviderDidCompleteCheckoutNotificationKey;
* @param provider the `BUYPaymentProvider` * @param provider the `BUYPaymentProvider`
* @param error the optional `NSError` * @param error the optional `NSError`
*/ */
- (void)paymentProvider:(id <BUYPaymentProvider>)provider didFailWithError:(NSError *)error; - (void)paymentProvider:(id <BUYPaymentProvider>)provider didFailWithError:(nullable NSError *)error;
/** /**
* Called when the checkout has completed * Called when the checkout has completed
......
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