n class="r-msg co"><span class="r-pr">#&gt;</span> </span>
<span class="r-msg co"><span class="r-pr">#&gt;</span> ── &lt;CLOSED_FORM object&gt;</span>
<span class="r-msg co"><span class="r-pr">#&gt;</span> EXPR = 2 + a </span>
<span class="r-in"></span>
<span class="r-in"><span class="va">z</span><span class="op">$</span><span class="fu">compute</span><span class="op">(</span><span class="op">)</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] 6</span>
</code></pre></div>
    </di