uote>
  Contains all of the vertex and edge properties that should be
  emitted by the GraphViz writer.
</blockquote>

IN: <tt>const std::string&amp; node_id</tt>
<blockquote>
  The name of the property map that provides identifiers for the
  vertices in the graph.<br>
<b>Default</b>: <tt>"node_id"</tt>
</blockquote>

IN: <tt>VertexID vertex_id</tt>
<blockquote>
  A property map that models <a href="../../property_map/doc/ReadablePropertyMap.html">Readable Property Map</a>, whose key type is the vertex desc