class="op">=</span> <span class="fu"><a href="make_model.html">make_model</a></span><span class="op">(</span><span class="st">"X -&gt; Y"</span><span class="op">)</span> <span class="op">|&gt;</span></span></span>
<span class="r-in"><span>   <span class="fu"><a href="set_restrictions.html">set_restrictions</a></span><span class="op">(</span><span class="st">"Y[X=1] &lt; Y[X=0]"</span><span class="op">)</span></span></span>
<span class="r-in"><span> <span class="op">)</span></span></span>
<span class="r-in">