docs: def to_simple(self, serializer=None):
          """ Prepare to serialization.
  
          :return dict: paginator params
  
          """
          return dict(
              count=self.paginator.count,
              page=self.page_number,
              num_pages=self.paginator.num_pages,
              next=self.next_page,
              prev=self.previous_page,
              resources=self.resources,
          )