an class="fu">service_line_vec</span><span class="op">(</span></span></span>
<span class="r-in"><span>  .data <span class="op">=</span> <span class="va">df</span>,</span></span>
<span class="r-in"><span>  .dx_col <span class="op">=</span> <span class="va">dx_col</span>,</span></span>
<span class="r-in"><span>  .px_col <span class="op">=</span> <span class="va">px_col</span>,</span></span>
<span class="r-in"><span>  .drg_col <span class="op">=</span> <span class="va">drg_col</span></span></span>
<span c