code: def read_limits(self, limit=None, page_size=None):
          
          page_limit = values.unset
  
          if limit is not None:
  
              if page_size is None:
                  page_size = limit
  
              page_limit = int(ceil(limit / float(page_size)))
  
          return {
              'limit': limit or values.unset,
              'page_size': page_size or values.unset,
              'page_limit': page_limit,
          }
docs: Takes a limit on the max number of records to read and a max page_size
          and calculates the max number of pages to read.
  
          :param int limit: Max number of records to read.
          :param int page_size: Max page size.
          :return dict: A dictionary of paging limits.