[Freeswitch-dev] Calling Python Application from Chatplan (mod_sms help)

I'm pushing this to FreeSwitch-dev as mod_sms is still under active development. Any way to call a Python Application from the chatplan? This works: <action application="set" data="test=${python(OpenBTS_Parse_SMS)}"/> But I can't monkey with the session variables with the fs_api call. Instead, I want to do this: <action application="python" data="OpenBTS_Parse_SMS"/> and this fails in the following way: 2011-10-18 16:12:02.776298 [ERR] switch_loadable_module.c:705 Invalid chat application interface [python]! The mod_sms page seems to indicate that lua works just fine from the chatplan... is this just not implemented yet? Can I do that? Thanks!