* @param <E> Edge parameter type
 */
final class UndirectedMultiNetworkConnections<N, E>
    extends AbstractUndirectedNetworkConnections<N, E> {

  private UndirectedMultiNetworkConnections(Map<E, N> incidentEdges) {
    super(incidentEdges);
  }

  static <N, E> UndirectedMultiNetworkConnections<N, E> of() {
    return new UndirectedMultiNetworkConnections<>(
        new HashMap<E, N>(INNER_CAPACITY, INNER_LOAD_FACTOR));
  }