}
  }

  private static final class PermutationIterator<E> extends AbstractIterator<List<E>> {
    final List<E> list;
    final int[] c;
    final int[] o;
    int j;

    PermutationIterator(List<E> list) {
      this.list = new ArrayList<>(list);
      int n = list.size();
      c = new int[n];
      o = new int[n];
      Arrays.fill(c, 0);
      Arrays.fill(o, 1);

     */
    public void setHeaders(final Map<String, List<String>> headers) {
        if (headers != null) {
            final Map<String, List<String>> map = new HashMap<>();
            headers.entrySet().stream().filter(e -> e.getKey() != null).forEach(
                    e -> map.put(e.getKey().toLowerCase(Locale.ROOT), e.getValue() == null ? List.of() : List.copyOf(e.getValue())));
            this.headers = Map.copyOf(map);

      args.add(generateDummyArg(param, generator));
    }
    Object instance = createInstance(factory, args);
    List<Object> equalArgs = generateEqualFactoryArguments(factory, params, args);
    // Each group is a List of items, each item has a list of factory args.
    List<List<List<Object>>> argGroups = new ArrayList<>();
    argGroups.add(ImmutableList.of(args, equalArgs));
    EqualsTester tester =

        }
        return pairs;
    }

    /**
     * Checks if the AV pairs list contains a pair of the specified type
     *
     * @param pairs the list of AV pairs to search
     * @param type the AV pair type to look for
     * @return whether the list contains a pair of that type
     */
    public static boolean contains(final List<AvPair> pairs, final int type) {
        if (pairs == null) {
            return false;

        return doBatchInsert(new BulkList<>(list, call, entityCall), null);
    }

    public int[] batchUpdate(List<WebConfig> list) {
        return batchUpdate(list, null, null);
    }

    public int[] batchUpdate(List<WebConfig> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchUpdate(list, call, null);
    }

    public int[] batchUpdate(List<WebConfig> list, RequestOptionCall<BulkRequestBuilder> call,

    }

    /**
     * Get the page number list.
     * @return The page number list.
     */
    public List<Integer> getPageNumberList() {
        return pageNumberList;
    }

    /**
     * Set the page number list.
     * @param pageNumberList The page number list.
     */
    public void setPageNumberList(final List<Integer> pageNumberList) {
        this.pageNumberList = pageNumberList;

    }

    /**
     * Gets the list of page numbers for pagination navigation.
     * @return The list of page numbers.
     */
    public List<Integer> getPageNumberList() {
        return pageNumberList;
    }

    /**
     * Sets the list of page numbers for pagination navigation.
     * @param pageNumberList The list of page numbers.
     */

    }

    /**
     * Gets the page number list.
     *
     * @return the page number list
     */
    public List<Integer> getPageNumberList() {
        return pageNumberList;
    }

    /**
     * Sets the page number list.
     *
     * @param pageNumberList the page number list
     */
    public void setPageNumberList(final List<Integer> pageNumberList) {

    }

    /**
     * Gets the list of page numbers.
     * @return The list of page numbers.
     */
    public List<Integer> getPageNumberList() {
        return pageNumberList;
    }

    /**
     * Sets the list of page numbers.
     * @param pageNumberList The list of page numbers.
     */
    public void setPageNumberList(final List<Integer> pageNumberList) {

    }

    /**
     * @since 3.5.0
     */
    @Override
    public List<MavenProject> getAllProjects() {
        return this.allProjects;
    }

    @Override
    public List<MavenProject> getSortedProjects() {
        return new ArrayList<>(sorter.getSortedProjects());
    }

    @Override
    public List<MavenProject> getDownstreamProjects(MavenProject project, boolean transitive) {