Method getPropertiesString

corpus/java/training/guava/graph/Graphs.java:464–470

(Graph<?> graph)

   */
  // TODO(b/28087289): add allowsParallelEdges() once that's supported
  private static String getPropertiesString(Graph<?> graph) {
    if (graph instanceof Network) {
      return getPropertiesString((Network<?, ?>) graph);
    }
    return String.format("isDirected: %s, allowsSelfLoops: %s",
        graph.isDirected(), graph.allowsSelfLoops());
  }

  /**
   * Returns a string representation of the properties of {@code graph}.