private static Map<String, StorageCluster> parseClusters(ClusterListConfig clusters, AllClustersBucketSpacesConfig buckets) {
        return clusters.storage().stream()
                       .collect(toUnmodifiableMap(ClusterListConfig.Storage::name,
                                                  storage -> new StorageCluster(storage.name(),
                                                                                buckets.cluster(storage.name())
                                                                                       .documentType().entrySet().stream()
                                                                                       .collect(toMap(Map.Entry::getKey,
                                                                                                      entry -> entry.getValue().bucketSpace())))));
    }
Returns the last property with the given name, if present, or throws if this is empty or blank.
vespaclient-container-plugin/src/main/java/com/yahoo/document/restapi/resource/DocumentV1ApiHandler.java