nevermind. guess i figured it out already.
it appears it is like offset in mysql select. (ignore first n records and return the rest)
so the usage would be:
?maxReturn=200&filterType=folderId&filterValues=141&earliestUpdatedAt=2018-01-01T00:00:00-05:00&offset=0
count = len(response_json["result"])
if count =200 then offset+200 and repeat.