<span class="op">~</span> <span class="va">bm</span> <span class="op">+</span> <span class="va">zip</span>, weights <span class="op">=</span> <span class="va">exposure</span>,</span></span>
<span class="r-in"><span>            family <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/stats/family.html" class="external-link">Gamma</a></span><span class="op">(</span>link <span class="op">=</span> <span class="st">"log"</span><span class="op">)</span>, data <span class="op">=</span> <span cl