"content_nl",
        "content_no",
        "content_pa",
        "content_pl",
        "content_pt",
        "content_pt-br",
        "content_ro",
        "content_ru",
        "content_si",
        "content_sq",
        "content_sv",
        "content_ta",
        "content_te",
        "content_th",
        "content_tl",
        "content_tr",
        "content_uk",

        "content_nl",
        "content_no",
        "content_pa",
        "content_pl",
        "content_pt",
        "content_pt-br",
        "content_ro",
        "content_ru",
        "content_si",
        "content_sq",
        "content_sv",
        "content_ta",
        "content_te",
        "content_th",
        "content_tl",
        "content_tr",
        "content_uk",

        "content_nl",
        "content_no",
        "content_pa",
        "content_pl",
        "content_pt",
        "content_pt-br",
        "content_ro",
        "content_ru",
        "content_si",
        "content_sq",
        "content_sv",
        "content_ta",
        "content_te",
        "content_th",
        "content_tl",
        "content_tr",
        "content_uk",

      for (List<Integer> contents : SAMPLE_INPUTS) {
        for (int toRemove = 0; toRemove < 10; toRemove++) {
          assertEquals(
              contents.contains(toRemove) && EVEN.apply(toRemove),
              filter(createUnfiltered(contents), EVEN).remove(toRemove));
        }
      }
    }

    public void testContains() {
      for (List<Integer> contents : SAMPLE_INPUTS) {

        "filter" : ["lowercase"]
      },
      "contents_analyzer" : {
        "type" : "custom",
        "tokenizer" : "fess_japanese_normal",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "pos_filter", "content_length_filter", "limit_token_count_filter"]
      },
      "contents_reading_analyzer" : {
        "type" : "custom",

        "filter" : ["lowercase"]
      },
      "contents_analyzer" : {
        "type" : "custom",
        "tokenizer" : "fess_japanese_normal",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "pos_filter", "content_length_filter", "limit_token_count_filter"]
      },
      "contents_reading_analyzer" : {
        "type" : "custom",

    return new MinimalCollection<>(Object.class, true, contents);
  }

  // TODO: use this
  public static <E extends @Nullable Object> MinimalCollection<E> ofClassAndContents(
      Class<? super @NonNull E> type, E... contents) {
    return new MinimalCollection<>(type, true, contents);
  }

  private final E[] contents;
  private final Class<? super @NonNull E> type;

	}

	var contents []ItemContent
	if err := tx.Find(&contents).Error; err != nil {
		t.Errorf("failed to find contents, got error: %v", err)
	}
	if len(contents) != 3 {
		t.Errorf("expected %d contents, got %d", 3, len(contents))
	}

	// test delete
	if err := tx.Model(&item).Association("Contents").Unscoped().Delete(&contents[0]); err != nil {
		t.Errorf("failed to delete Contents, got error: %v", err)
	}

  final transient ObjectCountHashMap<E> contents;
  private final transient int size;

  @LazyInit @CheckForNull private transient ImmutableSet<E> elementSet;

  RegularImmutableMultiset(ObjectCountHashMap<E> contents) {
    this.contents = contents;
    long size = 0;
    for (int i = 0; i < contents.size(); i++) {
      size += contents.getValue(i);
    }
    this.size = Ints.saturatedCast(size);
  }

    elems = new CollectionBenchmarkSampleData(elements);
    contents = Maps.newHashMap();
    for (Element key : elems.getValuesInSet()) {
      contents.put(key, key);
    }
    map = mapsImpl.create(contents);
  }

  @Benchmark
  @Footprint(exclude = Element.class)
  public Map<Element, Element> create() throws Exception {
    return mapsImpl.create(contents);
  }

  @Benchmark
  public int iterate() {