ass="va">model_sim</span> <span class="op">|&gt;</span></span>
<span>  <span class="fu"><a href="reference/add_scenario.html">add_scenario</a></span><span class="op">(</span></span>
<span>    name <span class="op">=</span> <span class="st">"expansion"</span>, origin <span class="op">=</span> <span class="st">"baseline"</span>,</span>
<span>    origin_start <span class="op">=</span> <span class="st">"2015-01-01"</span>, origin_end <span class="op">=</span> <span class="st">"2023-10-01"</span>,</span>
<span> 