Export DRS rules including DRS groups

I'm looking for a way to export a listing of DRS groups. I found some scripts that will export/import DRS rules, but they ony apply to affinity/anti-affinity for VMs - like these:

http://ict-freak.nl/2009/08/28/powercli-export-import-and-create-drs-rules/

Is there any way to export the DRS host/vm group information and the rules for running VM's on specific hosts?

Also found these scripts as well

Re: Backup/Restore DRS VM affinity/anti-affinity rules - can these be backed up and restored without manually re-entering after DRS disable?