@Deprecated
    @Override
    public MutableSet<Pair<T, Integer>> zipWithIndex()
    {
        return Iterate.zipWithIndex(this, UnifiedSet.<Pair<T, Integer>>newSet());
    }
@ Deprecated @ Override public MutableSet < Pair < T , Integer > > zipWithIndex ( ) { return Iterate . zipWithIndex ( this , UnifiedSet . < Pair < T , Integer > > newSet ( ) ) ; }
@deprecated in 6.0. Use {@link OrderedIterable#zipWithIndex()} instead.