!7

!include once #1013695 // GraphViz

p {
  File img;
  Graph g = graph("example1").directed()
    .with(node("a").link(node("b")));
  Graphviz.fromGraph(g)
    .width(200).render(Format.PNG)
    .toFile(img = programFile("ex1.png"));
  showImage(img);
}