docs: public <K extends Comparable<K>, V> SortingBufferMaker<K, V> createSortingWithDuplicatesBuffer( Serializer<K> keySerializer,
                                                                                                      Comparator<?> keyComparator,
                                                                                                      Serializer<V> valueSerializer ) {
          return new MakeSortingWithDuplicatesBuffer<K, V>("buffer-" + dbCounter.incrementAndGet(), keySerializer, keyComparator,
                                                           valueSerializer);
      }