code: public ListVersionsRequest toListVersionsRequest() {
          return new ListVersionsRequest(previousVersionListing.getBucketName(),
                  previousVersionListing.getPrefix(),
                  previousVersionListing.getNextKeyMarker(),
                  previousVersionListing.getNextVersionIdMarker(),
                  previousVersionListing.getDelimiter(),
                  Integer.valueOf(previousVersionListing.getMaxKeys()))
                  .withEncodingType(previousVersionListing.getEncodingType());
      }
docs: Creates a new {@link ListVersionsRequest} object using the previous version listing.
  @return A new {@link ListVersionsRequest} object using the previous version listing.