</span></code></div><div class="spec-doc"><p>generate a string that can be written to a .dot file to draw the graph</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-graph_to_trace"><a href="#val-graph_to_trace" class="anchor"></a><code><span><span class="keyword">val</span> graph_to_trace : <span><a href="#type-graph">graph</a> <span class="arrow">&#45;&gt;</span></span> string</span></code></div><div class="spec-doc"><p>print the graph structure to a string</p></div></div><div