sage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">comp_ply</span><span class="op">(</span><span class="va">object</span>, <span class="va">alt.attr</span>, <span class="va">.f</span>, <span class="va">...</span>, ego.attr <span class="op">=</span> <span class="cn">NULL</span>, result.name <span class="op">=</span> <span class="st">"result"</span><span class="op">)</span></span></code></pre></div>
    </div