@Override
    public java.util.concurrent.Future<CreateAccountResult> createAccountAsync(CreateAccountRequest request) {

        return createAccountAsync(request, null);
    }
Abstract implementation of {@code AmazonChimeAsync}. Convenient method forms pass through to the corresponding
overload that takes a request object and an {@code AsyncHandler}, which throws an
{@code UnsupportedOperationException}.
aws-java-sdk-chime/src/main/java/com/amazonaws/services/chime/AbstractAmazonChimeAsync.java