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