Метод complete

Future complete(

)

Реализация

Future complete([String? paymentResult]) =>
    promiseToFuture(JS("", "#.complete(#)", this, paymentResult));

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-html/PaymentResponse/complete.html