 class="odoc-spec"><div class="spec value anchored" id="val-save_graph"><a href="#val-save_graph" class="anchor"></a><code><span><span class="keyword">val</span> save_graph : <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span>string <span class="arrow">&#45;&gt;</span></span> unit</span></code></div><div class="spec-doc"><p>save the graph object to a file with given name, using marshall format</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="va