title: How to apply two different type to an edge in sigma.js
body: <p>I'm trying to draw edges in a sigma.js graph <strong>DOTTED</strong> and <strong>CURVED</strong>.
  I'm using <code>customEdgeShapes</code> and <code>curve</code> plugins but I cannot combine two different styles in the same edge.
  In fact I can only apply a single style to the <code>type</code> attribute:</p>
  
  <pre><code>edge.type = 'curvedArrow';
  </code></pre>
  
  <p>or</p>
  
  <pre><code>edge.type = 'dotted';
  </code></pre>
  
  <p>How can I apply both styles to an edge?</p>