I'm trying to figure out the most efficient way to pull a list of people in my organization who are recurring donors. This seems to be relatively straightforward from the people admin page through the web portal, but it does not look like I can set a query parameter for this through the People API. It looks like the only way to do this is to go through the Donation API, but there it looks like I will have to make a very large number of API calls as there isn't an easy way to filter on this either. Is there an alternate solution? Thanks.