e as well).</li>
<li>
<code><a href="../reference/density_plot.html">density_plot()</a></code> and <code><a href="../reference/trace_plot.html">trace_plot()</a></code> previously
accepted a <code>p_one</code> argument – this is now <code>param</code>
(distinction between multiple parameters and one parameter); but most
users won’t notice this as these are non-exported functions.</li>
<li>The non-exported functions <code><a href="../reference/ins_regex_bracket.html">ins_regex_bracket()</a></code>,
<code>