Namespace: minioNamespace,
					Subsystem: auditSubsystem,
					Name:      "total_messages",
					Help:      "Total number of messages sent since start",
					Type:      counterMetric,
				},
				VariableLabels: map[string]string{"target_id": id},
				Value:          float64(st.TotalMessages),
			})
			metrics = append(metrics, MetricV2{
				Description: MetricDescription{