code: @Override
    public <N> Mutator<K> addDeletion(K key, String cf, N columnNameStart, N columnNameFinish, Serializer<N> nameSerializer, long clock) {
      SlicePredicate sp = new SlicePredicate();
      sp.setSlice_range(new SliceRange(nameSerializer.toByteBuffer(columnNameStart), nameSerializer.toByteBuffer(columnNameFinish), false, Integer.MAX_VALUE));
      Deletion d = new Deletion().setTimestamp(clock).setPredicate(sp);
      getPendingMutations().addDeletion(key, Arrays.asList(cf), d);
      return this;
    }
docs: {@inheritDoc}