class ProtonMetricsRetriever {

    public ProtonMetricsResponse getMetrics(Application application) {
        var hosts = getHostsOfApplication(application);
        var clusterMetrics = metricsRetriever.requestMetricsGroupedByCluster(hosts);
        return new ProtonMetricsResponse(200, application.getId(), clusterMetrics);
    }

    public  ProtonMetricsRetriever();
    public  ProtonMetricsRetriever(ClusterProtonMetricsRetriever metricsRetriever);

}