code: public static <N, E> NetworkBuilder<N, E> from(Network<N, E> network) {
      return new NetworkBuilder<N, E>(network.isDirected())
          .allowsParallelEdges(network.allowsParallelEdges())
          .allowsSelfLoops(network.allowsSelfLoops())
          .nodeOrder(network.nodeOrder())
          .edgeOrder(network.edgeOrder());
    }
docs: Returns a {@link NetworkBuilder} initialized with all properties queryable from {@code
  network}.
  
  <p>The "queryable" properties are those that are exposed through the {@link Network} interface,
  such as {@link Network#isDirected()}. Other properties, such as {@link
  #expectedNodeCount(int)}, are not set in the new builder.