op">)</span>, <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">2</span>,<span class="fl">3</span><span class="op">)</span><span class="op">)</span><span class="op">)</span></span>
<span><span class="fu">a_linestring</span><span class="op">(</span> <span class="va">x</span>, <span class="cn">NULL</span>, <span class="st">"id"</span> <span class="op">)</span></span>
<span><span class="co">#    id         geometry</span></s