[Twisted-Python] XMLRPC server: nested handlers?

[Don Dwiggins]

I have an XMLRPC server, currently with two subhandlers.  One of them is 
getting quite large (over 120 "xmlrpc_" methods plus helpers), and I'd 
like to break it up into "sub-subhandlers".

http://twistedmatrix.com/documents/current/web/howto/xmlrpc.html#auto2 
says that you can do this "to arbitrary depths".  It's not quite clear 
how to set this up, however.  Before I start experimenting, I thought 
I'd ask if anyone has done this, and can show a bit of code for it.

TIA,
-- 
Don Dwiggins
Advanced Publishing Technology