cache<a class="anchor" aria-label="anchor" href="#arg-cache"></a></dt>
<dd><p>Logical or Integer. If <code>TRUE</code> or a number greater than zero,
then data-caching will be used. If not logical then the cache will be
invalidated after the number of hours indicated by the argument. If a
length one vector is used, its value will only apply to caching
occurrence records. If the value is length two, then the second element
will determine how metadata is cached.</p></dd>


<dt id="arg-dwc">dwc<a class="anchor