RetrieveFeaturesLiveCommandImpl extends AbstractQueryLiveCommand<RetrieveFeaturesLiveCommand,
        RetrieveFeaturesLiveCommandAnswerBuilder> implements RetrieveFeaturesLiveCommand { @Nonnull @Override public RetrieveFeaturesLiveCommandAnswerBuilder answer() { return RetrieveFeaturesLiveCommandAnswerBuilderImpl.newInstance(this); } private  RetrieveFeaturesLiveCommandImpl(final RetrieveFeatures command); @Nonnull static RetrieveFeaturesLiveCommandImpl of(final Command<?> command); @Override RetrieveFeaturesLiveCommand setDittoHeaders(final DittoHeaders dittoHeaders); @Nonnull @Override RetrieveFeaturesLiveCommandAnswerBuilder answer(); @Nonnull @Override String toString();  }
@Test public void answerReturnsNotNull() { Assertions.assertThat(underTest.answer()).isNotNull(); }