n>
<span>  varnames <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>Par <span class="op">=</span> <span class="st">"Par"</span>, T_leaf <span class="op">=</span> <span class="st">"T_leaf"</span><span class="op">)</span>,</span>
<span>  model <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Arrhenius"