(: XQuery by Priscilla Walmsley (c) 2016 Priscilla Walmsley:)

(:Example 13-4 Serialization parameters in a map :)
xquery version "3.1";
declare namespace prod = "http://datypic.com/prod"; 
let $map := map {
   "method": "xml",
   "version": "1.0",
   "indent": true(),
   "cdata-section-elements": (xs:QName("prod:desc"),xs:QName("prod:name")),
   "use-character-maps": map {
                           "«":"<%",
                           "»":">%"
                         }
}
let $element := <prod:name>Fleece Pullover</prod:name>
return serialize($element,$map)

Stopped at C:/Users/Arek/AppData/Local/Temp/example1304.xqy, 16/17:
[SEPM0017] item() expected, xs:QName+ found: (Q{http://datypic.com/prod}desc, Q{http://datypic.com/prod}name).