list<a class="headerlink" href="#lambda-list" title="Permalink to this headline">¶</a></h2>
<div class="highlight-cl notranslate"><div class="highlight"><pre><span></span><span class="p">(</span><span class="k">&amp;key</span> <span class="p">(</span><span class="ss">:vertices</span> <span class="ss">#:vertices</span><span class="p">)</span> <span class="p">(</span><span class="ss">:precolored-vertices</span> <span class="ss">#:precolored-vertices</span><span class="p">))</span>
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