 class="op">(</span><span class="cn">FALSE</span><span class="op">)</span> <span class="op">{</span></span>
<span class="r-in"></span>
<span class="r-in"><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://github.com/joshualerickson/whitewater/" class="external-link">whitewater</a></span><span class="op">)</span></span>
<span class="r-in"><span class="va">yaak_river_dv</span> <span class="op">&lt;-<