public static <K, V> UnoptimizableRepartitionNodeBuilder<K, V> unoptimizableRepartitionNodeBuilder() {
        return new UnoptimizableRepartitionNodeBuilder<>();
    }
Repartition node that is not subject of optimization algorithm
streams/src/main/java/org/apache/kafka/streams/kstream/internals/graph/UnoptimizableRepartitionNode.java