ss="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>overlap <span class="op">=</span> <span class="st">"true"</span>, fontsize <span class="op">=</span> <span class="st">"10"</span><span class="op">)</span>,</span>
<span>  node_options <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>shape <span class="op">=</span> <span cla