public static SerdeFeatures of(final SerdeFeature... features) {
    return new SerdeFeatures(ImmutableSet.copyOf(features));
  }
@Test
  public void shouldHaveSensibleToString() {
    // Given:
    final SerdeFeatures features = SerdeFeatures.of(WRAP_SINGLES);

    // Then:
    assertThat(features.toString(), is("[WRAP_SINGLES]"));
  }