5"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">model_sim</span> <span class="op">&lt;-</span> <span class="va">model_sim</span> <span class="op">|&gt;</span></span>
<span>  <span class="fu"><a href="reference/add_equation.html">add_equation</a></span><span class="op">(</span><span class="st">"C_s = C_d"</span>, desc <span class="op">=</span> <span class="st">"Consumption"</span><span class="op">)</span> <span class="op">|&gt;</span> </span>
<span>  <span class="fu"><