/**
   * Specifies the expected number of nodes in the graph.
   *
   * @throws IllegalArgumentException if {@code expectedNodeCount} is negative
   */
  @CanIgnoreReturnValue
  public ValueGraphBuilder<N, V> expectedNodeCount(int expectedNodeCount) {
    this.expectedNodeCount = checkNonNegative(expectedNodeCount);
    return this;
  }

  /**
   * Specifies the order of iteration for the elements of {@link Graph#nodes()}.

  /**
   * Specifies the expected number of nodes in the graph.
   *
   * @throws IllegalArgumentException if {@code expectedNodeCount} is negative
   */
  @CanIgnoreReturnValue
  public GraphBuilder<N> expectedNodeCount(int expectedNodeCount) {
    this.expectedNodeCount = checkNonNegative(expectedNodeCount);
    return this;
  }

  /**
   * Specifies the order of iteration for the elements of {@link Graph#nodes()}.

  /**
   * Specifies the expected number of nodes in the network.
   *
   * @throws IllegalArgumentException if {@code expectedNodeCount} is negative
   */
  @CanIgnoreReturnValue
  public NetworkBuilder<N, E> expectedNodeCount(int expectedNodeCount) {
    this.expectedNodeCount = checkNonNegative(expectedNodeCount);
    return this;
  }

  /**
   * Specifies the expected number of edges in the network.
   *

  final boolean directed;
  boolean allowsSelfLoops = false;
  ElementOrder<N> nodeOrder = ElementOrder.insertion();
  ElementOrder<N> incidentEdgeOrder = ElementOrder.unordered();

  @Nullable Integer expectedNodeCount = null;

  /**
   * Creates a new instance with the specified edge directionality.
   *
   * @param directed if true, creates an instance for graphs whose edges are each directed; if

  StandardValueGraph(AbstractGraphBuilder<? super N> builder) {
    this(
        builder,
        builder.nodeOrder.createMap(firstNonNull(builder.expectedNodeCount, DEFAULT_NODE_COUNT)),
        0L);
  }

  /**
   * Constructs a graph with the properties specified in {@code builder}, initialized with the given
   * node map.
   */
  StandardValueGraph(

  StandardNetwork(NetworkBuilder<? super N, ? super E> builder) {
    this(
        builder,
        builder.nodeOrder.createMap(firstNonNull(builder.expectedNodeCount, DEFAULT_NODE_COUNT)),
        builder.edgeOrder.createMap(firstNonNull(builder.expectedEdgeCount, DEFAULT_EDGE_COUNT)));
  }

  /**