title: Save graph with graphstream
body: <p>In my java project I'm using graphs with this library "<a href="http://graphstream-project.org/" rel="nofollow">graphstream</a>".</p>
  
  <p>I need to save my graph in a type file "Graphviz Dot", i.e.: nodes, edges, node attributes, edge attributes.
  I usually do in this way to save my graph in the file:</p>
  
  <pre><code>Graph graph = new MultiGraph(strId, strictChecking, autoCreate);
  // create nodes, edges, node attributes, edge attributes...
  FileSinkDOT fs = new FileSinkDOT();
  fs.writeAll(graph, filePath);
  </code></pre>
  
  <p>Problem: When I open or load the  file, I can't see edge attributes.
  Anyone knows "graphstream" and knows can I save this file?</p>
  
  <p>Thank you for all your assistance.</p>