API Query for Unique Visitor Count Per Page URL For Custom Date Range?

We’re attempting to replace some existing code with calls to the Matomo API and ran into a blocker. We need to retrieve nb_uniq_visitors using the API module method Actions.getPageUrls for a custom date range. We’ve followed the instructions in this FAQ: https://matomo.org/faq/how-to/faq_113/ to enable computing the value, but the column is not included in our result set. If we switch period to day then the column is displayed. Is getPageUrls one of the queries that does not suport nb_uniq_visitors for custom date ranges, and if so, does anyone know of a work around?