sly observed. Examining the <code>args</code> list column, we see the following.</p>
<div class="sourceCode" id="cb9"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb9-1" data-line-number="1">d_funcs[<span class="dv">1</span>, <span class="st">"args"</span>][[<span class="dv">1</span>]]</a>
<a class="sourceLine" id="cb9-2" data-line-number="2"><span class="co">#&gt; [[1]]</span></a>
<a class="sourceLine" id="cb9-3" data-line-number="3"><span class="co">#&gt; [[1]][[1]]</span