|- valign="top"
| width='120' | '''Signatures'''
|{{Func|lazy:cache|$items as item()*|item()*}}<br/pre>{{Func|lazy:cache|( $items as item()*, $lazy as xs:boolean| := ()) as item()*}}</pre>
|- valign="top"
| '''Summary'''
|- valign="top"
| width='120' | '''Signatures'''
|{{Func|<pre>lazy:is-lazy|( $item as item()|) as xs:boolean}}</pre>
|- valign="top"
| '''Summary'''
|- valign="top"
| width='120' | '''Signatures'''
|{{Func|<pre>lazy:is-cached|( $item as item()|) as xs:boolean}}</pre>
|- valign="top"
| '''Summary'''