@SuppressWarnings("WeakerAccess")
    public KafkaServer kafkaServer() {
        return kafka;
    }
Create a Kafka topic with the given parameters.

@param topic       The name of the topic.
@param partitions  The number of partitions for this topic.
@param replication The replication factor for (partitions of) this topic.
@param topicConfig Additional topic-level configuration settings.
streams/src/test/java/org/apache/kafka/streams/integration/utils/KafkaEmbedded.java