I was wondering if there is a better way to get a total number of
tweets on a search string than using the search API and then paging
through the tweets. I am interested in getting the total number of
tweets for a topic since a particular time, generally the time of my
last update, but it appears the only way to get a count is to page
through the results, which would just lead to a ton of requests,
instead of being able to just get an aggregate count in one api call.