>: <code class="type"><a href="Misc.Stdlib.String.html">Misc.Stdlib.String</a></code></pre>
<pre><code><span id="TYPEmap_tree"><span class="keyword">type</span> <code class="type"></code>map_tree</span> = </code></pre><table class="typetable">
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<code><span class="keyword">|</span></code></td>
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<code><span id="TYPEELTmap_tree.Node"><span class="constructor">Node</span></span> <span class="keyword">of</span> <code class="type">String.Set.