this operation.</p>
<hr class="docutils" />
<pre class="literal-block">
template&lt;typename OStreamConstructibleArchive&gt;
  void save(std::string const&amp; filename) const;

template&lt;typename IStreamConstructibleArchive&gt;
  void load(std::string const&amp; filename);
</pre>
<p>Serializes the graph to a Boost.Serialization archive.
<tt class="docutils literal"><span class="pre">OStreamConstructibleArchive</span></tt> and <tt class="docutils literal"><span class="pre">IStreamConstructibleArchive</spa