}
        return pairs;
    }


    /**
     * 
     * @param pairs
     * @param type
     * @return whether the list contains a pair of that type
     */
    public static boolean contains ( List<AvPair> pairs, int type ) {
        if ( pairs == null ) {
            return false;
        }
        for ( AvPair p : pairs ) {
            if ( p.getType() == type ) {