co"><span class="r-pr">#&gt;</span> &lt;collector_character&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $data_class</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] "character"</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $aggregation_functions</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] "n"            "mis