private List<NodeMetricsClient> createNodeClients(MetricsNodesConfig nodesConfig) {
        return nodesConfig.node().stream()
                .map(Node::new)
                .map(node-> new NodeMetricsClient(httpClient, node, Clock.systemUTC()))
                .toList();
    }
This class retrieves metrics from all nodes in the given config, usually all
nodes in a Vespa application.

@author gjoranv
metrics-proxy/src/main/java/ai/vespa/metricsproxy/http/application/ApplicationMetricsRetriever.java