@Override
    public java.util.concurrent.Future<DescribeReservedNodeOfferingsResult> describeReservedNodeOfferingsAsync(
            com.amazonaws.handlers.AsyncHandler<DescribeReservedNodeOfferingsRequest, DescribeReservedNodeOfferingsResult> asyncHandler) {

        return describeReservedNodeOfferingsAsync(new DescribeReservedNodeOfferingsRequest(), asyncHandler);
    }
Simplified method form for invoking the DescribeReservedNodeOfferings operation with an AsyncHandler.

@see #describeReservedNodeOfferingsAsync(DescribeReservedNodeOfferingsRequest,
     com.amazonaws.handlers.AsyncHandler)
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/AmazonRedshiftAsyncClient.java