}
    }


    /**
     * Replace all occurances of the given type
     * 
     * @param pairs
     * @param rep
     */
    public static void replace ( List<AvPair> pairs, AvPair rep ) {
        remove(pairs, rep.getType());
        pairs.add(rep);
    }


    /**
     * 
     * @param pairs
     * @return encoded avpairs
     */