}

  private static <N, E> NetworkConnections<N, E> connectionsOf(Network<N, E> network, N node) {
    if (network.isDirected()) {
      Map<E, N> inEdgeMap = Maps.asMap(network.inEdges(node), sourceNodeFn(network));
      Map<E, N> outEdgeMap = Maps.asMap(network.outEdges(node), targetNodeFn(network));
      int selfLoopCount = network.edgesConnecting(node, node).size();
      return network.allowsParallelEdges()

   * interface.
   *
   * @since 14.0 (present with return type {@code SortedMap} since 2.0)
   */
  @Override
  public NavigableMap<K, Collection<V>> asMap() {
    return (NavigableMap<K, Collection<V>>) super.asMap();
  }

  /**
   * @serialData key comparator, value comparator, number of distinct keys, and then for each
   *     distinct key: the key, number of values for that key, and key values

  }

  private static <N, E> NetworkConnections<N, E> connectionsOf(Network<N, E> network, N node) {
    if (network.isDirected()) {
      Map<E, N> inEdgeMap = Maps.asMap(network.inEdges(node), sourceNodeFn(network));
      Map<E, N> outEdgeMap = Maps.asMap(network.outEdges(node), targetNodeFn(network));
      int selfLoopCount = network.edgesConnecting(node, node).size();
      return network.allowsParallelEdges()

            contextualLabel == 'Cannot locate tasks that match \':a:javadocJar\' as task \'javadocJar\' not found in project \':a\'. Some candidates are: \'javadoc\'.'
            additionalData.asMap == [ 'requestedPath' : ':a:javadocJar']
        }

        when:
        buildFile << '''
            subprojects {
                java { withJavadocJar() }
            }
        '''
        then:

func Namespace(iops *v1alpha1.IstioOperatorSpec) string {
	if iops.Namespace != "" {
		return iops.Namespace
	}
	if iops.Values == nil {
		return ""
	}
	v := iops.Values.AsMap()
	if v[globalKey] == nil {
		return ""
	}
	vg := v[globalKey].(map[string]any)
	n := vg[istioNamespaceKey]
	if n == nil {
		return ""
	}
	return n.(string)
}

  static <K extends @Nullable Object, V extends @Nullable Object> void writeMultimap(
      Multimap<K, V> multimap, ObjectOutputStream stream) throws IOException {
    stream.writeInt(multimap.asMap().size());
    for (Map.Entry<K, Collection<V>> entry : multimap.asMap().entrySet()) {
      stream.writeObject(entry.getKey());
      stream.writeInt(entry.getValue().size());
      for (V value : entry.getValue()) {
        stream.writeObject(value);

                (new NamespaceId('http://some.extra.info', 'foo')): 'anotherValue',
                (new NamespaceId('http://my.extra.info', 'bar')): 'barValue'
        ])

        expect:
        extraInfo.asMap() == [
                (new QName('http://my.extra.info', 'foo')): 'fooValue',
                (new QName('http://some.extra.info', 'foo')): 'anotherValue',
                (new QName('http://my.extra.info', 'bar')): 'barValue'

  static <K extends @Nullable Object, V extends @Nullable Object> void writeMultimap(
      Multimap<K, V> multimap, ObjectOutputStream stream) throws IOException {
    stream.writeInt(multimap.asMap().size());
    for (Map.Entry<K, Collection<V>> entry : multimap.asMap().entrySet()) {
      stream.writeObject(entry.getKey());
      stream.writeInt(entry.getValue().size());
      for (V value : entry.getValue()) {
        stream.writeObject(value);

        when:
        def visitor = new CollectingValueVisitor()
        hierarchy.visitValues(location, visitor)
        then:
        visitor.ancestorValues.asMap() == values

        where:
        location                                        | values
        ""                                              | [:]
        "some"                                          | [:]

   *
   * <p>Caches loaded by a {@link CacheLoader} will call {@link CacheLoader#load} to load new values
   * into the cache. Newly loaded values are added to the cache using {@code
   * Cache.asMap().putIfAbsent} after loading has completed; if another value was associated with
   * {@code key} while the new value was loading then a removal notification will be sent for the
   * new value.
   *