code: def _handle_page_args(self, rison_args):
          
          page = rison_args.get(API_PAGE_INDEX_RIS_KEY, 0)
          page_size = rison_args.get(API_PAGE_SIZE_RIS_KEY, self.page_size)
          return self._sanitize_page_args(page, page_size)
docs: Helper function to handle rison page
              arguments, sets defaults and impose
              FAB_API_MAX_PAGE_SIZE
  
          :param rison_args:
          :return: (tuple) page, page_size