return new AbstractSet<EndpointPair<N>>() {
          @Override
          public Iterator<EndpointPair<N>> iterator() {
            return Iterators.transform(
                AbstractNetwork.this.edges().iterator(), edge -> incidentNodes(edge));
          }

          @Override
          public int size() {
            return AbstractNetwork.this.edges().size();

                    final Transformer transformer = ((DefaultResponseProcessor) responseProcessor).getTransformer();
                    final ResultData resultData = transformer.transform(responseData);
                    final byte[] data = resultData.getData();
                    if (data != null) {
                        try {
                            @SuppressWarnings("unchecked")

            + "^\\s*ios-app:|" //
            + "^\\s*callto:", Pattern.CASE_INSENSITIVE);

    private final ThreadLocal<XPathAPI> xpathAPI = new ThreadLocal<>();

    @Override
    public ResultData transform(final ResponseData responseData) {
        if (responseData == null || !responseData.hasResponseBody()) {
            throw new CrawlingAccessException("No response body.");
        }

        // encoding

  private Iterable<LoadingCache<Object, Object>> caches() {
    // lots of different ways to configure a LoadingCache
    CacheBuilderFactory factory = cacheFactory();
    return Iterables.transform(
        factory.buildAllPermutations(),
        new Function<CacheBuilder<Object, Object>, LoadingCache<Object, Object>>() {
          @Override

    protected Map<String, String> metaContentMapping;

    protected FessConfig fessConfig;

    protected abstract Extractor getExtractor(ResponseData responseData);

    @Override
    public ResultData transform(final ResponseData responseData) {
        if (responseData == null || !responseData.hasResponseBody()) {
            throw new CrawlingAccessException("No response body.");
        }

    return new AsyncCallable<Integer>() {
      @Override
      public ListenableFuture<Integer> call() throws Exception {
        return Futures.transform(future, add(delta), executor);
      }
    };
  }

  private static final class LongHolder {
    long count;
  }

  private static final int ITERATION_COUNT = 50_000;

   *
   * @throws NullPointerException if the function returns {@code null}
   * @since 12.0
   */
  public abstract <V> Optional<V> transform(Function<? super T, V> function);

  /**
   * Returns {@code true} if {@code object} is an {@code Optional} instance, and either the

        final NodeIterator nodeItr = new NodeIterator(index);
        return new TransformedListIterator<Entry<K, V>, V>(nodeItr) {
          @Override
          @ParametricNullness
          V transform(Entry<K, V> entry) {
            return entry.getValue();
          }

          @Override
          public void set(@ParametricNullness V value) {
            nodeItr.setValue(value);
          }

              }
            });
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  private static FluentIterable<MediaType> getConstants() {
    return getConstantFields()
        .transform(
            new Function<Field, MediaType>() {
              @Override
              public MediaType apply(Field input) {
                try {
                  return (MediaType) input.get(null);

        try {
            Model model = readFileModel(request, problems);

            try {
                if (transformer != null && context != null) {
                    transformer.transform(pomFile, context, model);
                }
            } catch (TransformerException e) {
                problems.add(