@Override
    public java.util.concurrent.Future<DescribePackageImportJobResult> describePackageImportJobAsync(DescribePackageImportJobRequest request) {

        return describePackageImportJobAsync(request, null);
    }
Abstract implementation of {@code AWSPanoramaAsync}. 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-panorama/src/main/java/com/amazonaws/services/panorama/AbstractAWSPanoramaAsync.java