[basex-talk] xml serialisation

Hello, I need xquery reply which is composed of multiple values. I've chosen the xml format, but I need also the collection name of each record since I'm searching in multiple collections. However for parsing the entire reply as xml I need to add an arbitrary xml tag to base-uri($x). I couldn't find a way to do it. Any ideas?

Background: I've tried first the JSON format as output:method, however it cannot be used for more than one record. I've tried text format, but I need an attribute and I get: @codeListValue cannot be serialised So, xml format provides me the option to query the attribute, even though the reply length is bigger.

I'm using BaseX 8 beta.