[OSM-talk] Accessing "center" feature from Overpass XML?

[Bryce Nesbitt]

I know how to use "out meta center;" in Overpass query language to get
the center of a way.

What's the equivalent in Overpass XML?  I tried adding it to the
<print>, but I can't find documentation on <print> and the command is
rejected:

<osm-script output="xml" timeout="25">
  <union>
    <query type="node">
      <has-kv k="amenity" v="toilets"/>
      <bbox-query {{bbox}}/>
    </query>
    <query type="way">
      <has-kv k="amenity" v="toilets"/>
      <bbox-query {{bbox}}/>
    </query>
  </union>
  <print mode="meta center"/>
  <recurse type="down"/>
  <print mode="meta center" order="quadtile"/>
</osm-script>