pan><span class="kw">if</span> <span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/unname.html" class="external-link">unname</a></span><span class="op">(</span><span class="fu"><a href="https://r-spatial.github.io/sf/reference/sf_extSoftVersion.html" class="external-link">sf_extSoftVersion</a></span><span class="op">(</span><span class="op">)</span><span class="op">[</span><span class="st">"GEOS"</span><span class="op">]</span> <span class="op">&gt;=</span> <span class="st">"3.9.0"</sp