public void addValues(int id, int db, String key, Map<String, Double> values) {
AddZSet command = (AddZSet) new AddZSetFactory(id, db, key, values).getCommand();
command.execute();
}
public void removeMembers(int id, int db, String key, String[] members){
RemoveMembers command = new RemoveMembers(id, db, key, members);
command.execute();
}