RetrieveAttributeLiveCommandImpl extends AbstractQueryLiveCommand<RetrieveAttributeLiveCommand,
        RetrieveAttributeLiveCommandAnswerBuilder> implements RetrieveAttributeLiveCommand { @Nonnull @Override public RetrieveAttributeLiveCommandAnswerBuilder answer() { return RetrieveAttributeLiveCommandAnswerBuilderImpl.newInstance(this); } private  RetrieveAttributeLiveCommandImpl(final RetrieveAttribute command); @Nonnull static RetrieveAttributeLiveCommandImpl of(final Command<?> command); @Nonnull @Override JsonPointer getAttributePointer(); @Override RetrieveAttributeLiveCommand setDittoHeaders(final DittoHeaders dittoHeaders); @Nonnull @Override RetrieveAttributeLiveCommandAnswerBuilder answer(); @Nonnull @Override String toString();  }
@Test public void answerReturnsNotNull() { assertThat(underTest.answer()).isNotNull(); }