* @since 27.1
   */
  @CanIgnoreReturnValue
  boolean addEdge(EndpointPair<N> endpoints, E edge);

  /**
   * Removes {@code node} if it is present; all edges incident to {@code node} will also be removed.
   *
   * @return {@code true} if the network was modified as a result of this call
   */
  @CanIgnoreReturnValue
  boolean removeNode(N node);

  /**

    /**
     * The total number of pages available.
     */
    private int allPageCount;

    /**
     * Whether a previous page exists.
     */
    private boolean existPrePage;

    /**
     * Whether a next page exists.
     */
    private boolean existNextPage;

    /**
     * The list of page numbers for navigation.
     */
    private List<Integer> pageNumberList;

    /**

    private int allRecordCount;

    /** Total number of pages available. */
    private int allPageCount;

    /** Flag indicating if a previous page exists. */
    private boolean existPrePage;

    /** Flag indicating if a next page exists. */
    private boolean existNextPage;

    /** List of page numbers for pagination navigation. */
    private List<Integer> pageNumberList;

    /** Number of records to display per page. */

    private int allRecordCount;

    /** The total number of pages. */
    private int allPageCount;

    /** Indicates if a previous page exists. */
    private boolean existPrePage;

    /** Indicates if a next page exists. */
    private boolean existNextPage;

    /** The list of page numbers. */
    private List<Integer> pageNumberList;

    /** The number of records per page. */
    private int pageSize;

     * Total number of pages.
     */
    private int allPageCount;

    /**
     * Flag indicating whether a previous page exists.
     */
    private boolean existPrePage;

    /**
     * Flag indicating whether a next page exists.
     */
    private boolean existNextPage;

    /**
     * List of page numbers for pagination navigation.
     */
    private List<Integer> pageNumberList;

    /**

    private int allRecordCount;

    /** The total number of pages. */
    private int allPageCount;

    /** A flag indicating if a previous page exists. */
    private boolean existPrePage;

    /** A flag indicating if a next page exists. */
    private boolean existNextPage;

    /** A list of page numbers for navigation. */
    private List<Integer> pageNumberList;

    /** The number of records per page. */

     */
    public boolean isEmpty() {
        return this.sub_authority_count == 0;
    }

    /**
     * Checks whether the SID is blank (all sub-authorities zero).
     *
     * @return whether the SID is blank (all sub-authorities zero)
     */
    public boolean isBlank() {
        boolean blank = true;
        for (final int sub : this.sub_authority) {

                return Short.valueOf(new SimpleDateFormat(pattern).format(o));
            }
            return (short) ((java.util.Date) o).getTime();
        } else if (o instanceof Boolean) {
            return ((Boolean) o) ? (short) 1 : (short) 0;
        } else {
            return toShort(o.toString());
        }
    }

    private static Short toShort(final String s) {
        if (StringUtil.isEmpty(s)) {

        }

        File f = new File(path);

        if (!f.isAbsolute()) {
            return false;
        }

        boolean fileExists = f.exists();

        return missing ? !fileExists : fileExists;
    }

    @Override
    public boolean presentInConfig(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
        Activation activation = profile.getActivation();

    }

    private boolean isPublicApi(CtMethod method) {
        return Modifier.isPublic(method.modifiers) || Modifier.isProtected(method.modifiers)
    }

    private List<String> filterChangesToReport(CtClass c, Set<CtMethod> methods) {
        return methods.findAll { isFirstPublicClassInHierarchy(it, c) }*.longName.sort()
    }

    private boolean isFirstPublicClassInHierarchy(CtMethod method, CtClass c) {