assertSame(Funnels.integerFunnel(), SerializableTester.reserialize(Funnels.integerFunnel()));
    assertSame(Funnels.longFunnel(), SerializableTester.reserialize(Funnels.longFunnel()));
    assertSame(
        Funnels.unencodedCharsFunnel(),
        SerializableTester.reserialize(Funnels.unencodedCharsFunnel()));
    assertEquals(
        Funnels.sequentialFunnel(Funnels.integerFunnel()),

    int element1 = 1;
    int element2 = 2;

    BloomFilter<Integer> bf1 = BloomFilter.create(Funnels.integerFunnel(), 100);
    bf1.put(element1);
    assertTrue(bf1.mightContain(element1));
    assertFalse(bf1.mightContain(element2));

    BloomFilter<Integer> bf2 = BloomFilter.create(Funnels.integerFunnel(), 100);
    bf2.put(element2);
    assertFalse(bf2.mightContain(element1));

   */
  public static Funnel<Integer> integerFunnel() {
    return IntegerFunnel.INSTANCE;
  }

  private enum IntegerFunnel implements Funnel<Integer> {
    INSTANCE;

    @Override
    public void funnel(Integer from, PrimitiveSink into) {
      into.putInt(from);
    }

    @Override
    public String toString() {
      return "Funnels.integerFunnel()";
    }
  }

  /**

   */
  public static Funnel<Integer> integerFunnel() {
    return IntegerFunnel.INSTANCE;
  }

  private enum IntegerFunnel implements Funnel<Integer> {
    INSTANCE;

    @Override
    public void funnel(Integer from, PrimitiveSink into) {
      into.putInt(from);
    }

    @Override
    public String toString() {
      return "Funnels.integerFunnel()";
    }
  }

  /**

    int element1 = 1;
    int element2 = 2;

    BloomFilter<Integer> bf1 = BloomFilter.create(Funnels.integerFunnel(), 100);
    bf1.put(element1);
    assertTrue(bf1.mightContain(element1));
    assertFalse(bf1.mightContain(element2));

    BloomFilter<Integer> bf2 = BloomFilter.create(Funnels.integerFunnel(), 100);
    bf2.put(element2);
    assertFalse(bf2.mightContain(element1));