code: public Future<Map<Integer, Set<RunePage>>> getRunePagesMultipleUsers(int... ids) {
          return new ApiFuture<>(() -> handler.getRunePagesMultipleUsers(ids));
      }
docs: Retrieve runes pages for multiple users
  @param ids The ids of the users
  @return A map, mapping user ids to their respective runes pages
  @see <a href=https://developer.riotgames.com/api/methods#!/620/1932>Official API documentation</a>