Google Calendar and putting events into calendars

Hello there

Can anyone tell me what exactly needs to go into this bit of code?

response = g.new_event(event, 'my_NOT_default_calendar') #post data to that calendar puts response.body

All the code is here, thanks to Ben by the way

Does anyone know what pieve of information from your calendar would you put in that field, I've tried all the pieces of information I get back from get_calendars() and I can't make it work.

If anyone has any ideas I'd be more than grateful.