// GetPeerMetrics gets the metrics to be federated across peers.
func (s *peerRESTServer) GetPeerMetrics(_ *grid.MSS) (*grid.Array[*MetricV2], *grid.RemoteErr) {
	res := make([]*MetricV2, 0, len(peerMetricsGroups))
	populateAndPublish(peerMetricsGroups, func(m MetricV2) bool {
		if m.VariableLabels == nil {
			m.VariableLabels = make(map[string]string, 1)
		}
		m.VariableLabels[serverName] = globalLocalNodeName
		res = append(res, &m)