Prepare to serialization.

        :return dict: paginator params

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,
        )