TYPE zabbix_custom_metric gauge
zabbix_custom_metric{instance="server01",key="custom.metric"} 25 zabbix_custom_metric{instance="server02",key="custom.metric"} 42 ```
zabbix_custom_metric{instance="server01",key="custom.metric"} 25
zabbix_custom_metric{instance="server02",key="custom.metric"} 42
```