"fu"><a href="https://rdrr.io/r/utils/str.html" class="external-link">str</a></span><span class="op">(</span><span class="va">variable_details</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 'data.frame':	3266 obs. of  16 variables:</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ variable               : chr  "active_transport" "active_transport" "active_transport" "active_transport" ...</span>
<span class="r-out co"><span class="r-pr">#&