public Long sInterStore(byte[] destKey, byte[]... keys) {
   try {
     if (isPipelined()) {
       pipeline(pipeline.sinterstore(destKey, (Object[]) keys));
       return null;
     }
     return client.sinterstore(destKey, (Object[]) keys).data();
   } catch (Exception ex) {
     throw convertSrpAccessException(ex);
   }
 }