This is not a question but more of a solution,
I had a scenario where we needed to query all the calendars in the environment for specifics attendees. Ross helped me out with the solution, but I wanted to post it here in case someone else needs it in the future.
gam config num_threads 10 redirect csv .....\AllRecurringEvents.csv multiprocess redirect stderr - multiprocess csv user.csv gam user ~user print events minaccessrole owner matchfield attendees csvfile csvgroupcalendar.csv:group endcsv fields id,summary,status,start,end,attendees,recurrence,icaluid,organizer.email,organizer.self