[web2py] how to remove from the foo.xml reply?

[bob]

Great app,  but I'm stuck on how to build custom XML.

I have the following:

@request.restful()
def check():
    def GET(id):
        count = db(db.users.user_name==id).count()
        if count > 0:
            return dict(Status=1)
        else:
            return dict(Status=0)

    return locals()

when I do a 'check.xml/foo' request I get back:

<document>
     <Status>1</Status>
</document>

if foo exists.    How do I change the XML that is being built?   I would 
like to replace the <document>, etc.

thanks much for a very nice framework.
bob