class KTableImpl extends AbstractStream<K, V> implements KTable<K, V> {

    @Override
    public <K1, V1> KGroupedTable<K1, V1> groupBy(final KeyValueMapper<? super K, ? super V, KeyValue<K1, V1>> selector) {
        return groupBy(selector, Grouped.with(null, null));
    }

    public  KTableImpl(final String name,
                      final Serde<K> keySerde,
                      final Serde<V> valueSerde,
                      final Set<String> subTopologySourceNodes,
                      final String queryableStoreName,
                      final ProcessorSupplier<?, ?> processorSupplier,
                      final StreamsGraphNode streamsGraphNode,
                      final InternalStreamsBuilder builder);

}