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  <section class="tex2jax_ignore mathjax_ignore" id="data-structures">
<h1><span class="section-number">6.4. </span>data structures<a class="headerlink" href="#data-structures" title="Link to this heading">#</a></h1>
<section id="lists">
<h2><span class="section-number">6.4.1. </span>lists<a class="headerlink" href="#lists" title="Link to this heading">#</a></h