@Override
  public Set<T> asSet() {
    return Collections.singleton(reference);
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    return new Present<>(
        checkNotNull(
            function.apply(reference),
            "the Function passed to Optional.transform() must not return null."));
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    if (obj instanceof Present) {

 *
 * {@snippet :
 * ListenableFuture<Boolean> adminIsLoggedIn =
 *     FluentFuture.from(usersDatabase.getAdminUser())
 *         .transform(User::getId, directExecutor())
 *         .transform(ActivityService::isLoggedIn, threadPool)
 *         .catching(RpcException.class, e -> false, directExecutor());
 * }
 *
 * <h3>Alternatives</h3>
 *
 * <h4>Frameworks</h4>
 *

                    } catch (ChecksumFailedException e) {
                        // if we catch a ChecksumFailedException, it means the transfer/read succeeded, but the
                        // checksum doesn't match. This could be a problem with the server (ibiblio HTTP-200 error

   *
   * <p>Equivalent to {@link #binarySearch(List, Object, Comparator, KeyPresentBehavior,
   * KeyAbsentBehavior)} using {@link Lists#transform(List, Function) Lists.transform(list,
   * keyFunction)}.
   */
  public static <E extends @Nullable Object, K extends @Nullable Object> int binarySearch(
      List<E> list,
      Function<? super E, K> keyFunction,

			col:  r.col,
			msg:  "Invalid arguments specified",
		}
	}

	return nil
}

//   # snowball based archive transfer is by default enabled when source
//   # is local and target is remote which is also minio.
//   snowball:
//     disable: false # optionally turn-off snowball archive transfer
//     batch: 100 # upto this many objects per archive

#    # sessionToken: SESSION-TOKEN # Optional only available when rotating credentials are used
    snowball: # automatically activated if the source is local
      disable: true # optionally turn-off snowball archive transfer
#      batch: 100 # upto this many objects per archive
#      inmemory: true # indicates if the archive must be staged locally or in-memory
#      compress: false # S2/Snappy compressed archive

        responseData.setResponseBody(data);
        final ResultData resultData = binaryTransformer.transform(responseData);
        assertEquals("xyz", new String(resultData.getData()));
    }

    public void test_transform_null() {
        try {
            binaryTransformer.transform(null);
            fail();
        } catch (final CrawlerSystemException e) {
            // NOP
        }
    }

 *
 *
 */
@Deprecated
public interface ClasspathTransformation {
    String ROLE = ClasspathTransformation.class.getName();

    /**
     * Transform Graph into a Collection of metadata objects that
     * could serve as a classpath for a particular scope
     *
     * @param dirtyGraph - dependency graph
     * @param scope - which classpath to extract

 *
 * This form is used to collect user input and parameters needed to initiate
 * crawling operations through the administrative interface wizard workflow.
 * It serves as a data transfer object between the web layer and the crawling
 * service components.
 */
public class StartCrawlingForm {

    /**
     * Default constructor.
     */
    public StartCrawlingForm() {

        assertEquals(content, new String(resultData.getData()));
        assertEquals(1, resultData.getChildUrlSet().size());
        assertEquals("http://hoge/test.html?q=hoge", resultData.getChildUrlSet().iterator().next().getUrl());
    }

    public void test_transform_null() {
        try {
            htmlTransformer.transform(null);
            fail();