
admin:appserver-set-output-undeclare-prefixes( $config as element(configuration), $appserver-id as xs:unsignedLong, $value as xs:string ) as element(configuration)
This function configures whether by default, serialization for the specified App Server should undeclare the namespace prefix of any child element that does not bind the prefix of its parent element.
http://marklogic.com/xdmp/privileges/admin/app-server
http://marklogic.com/xdmp/privileges/admin/app-server/{id}
http://marklogic.com/xdmp/privileges/admin/group
http://marklogic.com/xdmp/privileges/admin/group/{id}
  xquery version "1.0-ml";
  import module namespace admin = "http://marklogic.com/xdmp/admin"
		  at "/MarkLogic/admin.xqy";
  let $config := admin:get-configuration()
  let $groupid := admin:group-get-id($config, "Default")
  return
  admin:appserver-set-output-undeclare-prefixes($config,
         admin:appserver-get-id($config, $groupid, "myAppServer"),
         "yes")
  (: returns the new configuration element -- use admin:save-configuration
     to save the changes to the configuration or pass the configuration
     to other Admin API functions to make other changes.  :)