="op">{</span> <span class="co"># \dontrun{</span></span></span>
<span class="r-in"><span><span class="fu">termMeans</span><span class="op">(</span><span class="va">mod</span>, <span class="st">"A:B:C"</span><span class="op">)</span>    <span class="co"># generates an error</span></span></span>
<span class="r-in"><span><span class="op">}</span> <span class="co"># }</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="va">plastic.mod</span> <span class="op">&lt;-