span></span></span>
<span class="r-in"><span>    <span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span>    <span class="co"># toggle loaders</span></span></span>
<span class="r-in"><span>    <span class="co">## replace</span></span></span>
<span class="r-in"><span>    <span class="fu">observeEvent</span><span class="op">(</span><span class="va">input</span><span class="op">$</span><span class="va">b_re_start</span>, <span class="op">{</span></span></span>
<