/a></dt>
<dd><p>A list or a vector indicating the columns to be used for merging the data. <em>If not provided, the function will try to automatically detect columns to be merged</em>. For more information, refer to the details sections.</p></dd>


<dt id="arg-country-to">country_to<a class="anchor" aria-label="anchor" href="#arg-country-to"></a></dt>
<dd><p>Nomenclature to which country names should be converted to in the output. Default is <code>ISO3</code>. For a description of possible options, refer to