code: def id_pools_vsn_ranges(self):
          
          if not self.__id_pools_vsn_ranges:
              self.__id_pools_vsn_ranges = IdPoolsRanges('vsn', self.__connection)
          return self.__id_pools_vsn_ranges
docs: Gets the IdPoolsRanges API Client for VSN Ranges.
  
          Returns:
              IdPoolsRanges: