关于 Prometheus API，如何过滤目标？

Question

我可以使用 API http://host/api/v1/targets 在我的 Prometheus 中搜索所有目标。

例如

"activeTargets": [{
            "discoveredLabels": {
                "__address__": "192.168.x.x:9906",
                "__metrics_path__": "/metrics",
                "__scheme__": "http",
                "job": "mysql1"
            },
            "labels": {
                "instance": "192.168.x.x:9906",
                "job": "mysql1"
            },
            .....
        },{
            "discoveredLabels": {
                "__address__": "192.168.x.x:9100",
                "__metrics_path__": "/metrics",
                "__scheme__": "http",
                "job": "node1"
            },
            "labels": {
                "instance": "192.168.x.x:9100",
                "job": "node1"
            },
            ......
        }]

现在，我只想过滤所有 MySQL 目标，我该怎么做？