public Set<String> displayTags() {
        Set<String> displayTags = new LinkedHashSet<>(tags);
        displayTags.add("MetadataVersion=" + metadataVersion);
        displayTags.add("Security=" + securityProtocol.name());
        listenerName().ifPresent(listener -> displayTags.add("Listener=" + listener));
        return displayTags;
    }
Represents an immutable requested configuration of a Kafka cluster for integration testing.
core/src/test/java/kafka/test/ClusterConfig.java