Stack: <code class="code">sig</code> <a href="Belt_MutableStack.html">..</a> <code class="code">end</code></pre><div class="info module top">
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                    First in last out stack.
<p>

    This module implements stacks, with in-place modification.<br>
 
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<pre><span id="TYPEt"><span class="keyword">type</span> <code