s-0"
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         <h4 class="card-header bg-primary text-white">Variables</h4>
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      <div id="vars-0" class="collapse">
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            <a class="list-group-item" href="../type/superelement.html#variable-polygon_order">polygon_order</a>
            <a class="list-group-item" href="../type/superelement.html#variable-number_of_elements">number_of_elements</a>
            <a class="list-group-item" href=