query inspector grafana

{
    "queries": [
        {
            "datasource": {
                "uid": "<UID>",
                "type": "prometheus"
            },
            "editorMode": "code",
            "expr": "mem_swap_total{host=<REDACTED>}",
            "hide": true,
            "legendFormat": "total",
            "range": true,
            "refId": "swap_total",
            "interval": "",
            "expression": "",
            "window": "",
            "datasourceId": 1,
            "intervalMs": 15000,
            "maxDataPoints": 1396
        },
        {
            "datasource": {
                "uid": "<UID>",
                "type": "prometheus"
            },
            "editorMode": "code",
            "expr": "mem_swap_free{host=<REDACTED>} + mem_swap_cached{host=<REDACTED>}",
            "hide": true,
            "legendFormat": "__auto",
            "range": true,
            "refId": "swap_free",
            "interval": "",
            "expression": "",
            "window": "",
            "datasourceId": 1,
            "intervalMs": 15000,
            "maxDataPoints": 1396
        },
        {
            "datasource": {
                "type": "__expr__",
                "uid": "__expr__",
                "name": "Expression"
            },
            "expression": "(($swap_total - $swap_free) / $swap_total) * 100",
            "hide": false,
            "refId": "B",
            "type": "math",
            "window": ""
        }
    ],
    "range": {
        "from": "2022-11-17T14:40:49.738Z",
        "to": "2022-11-17T15:40:49.738Z",
        "raw": {
            "from": "now-1h",
            "to": "now"
        }
    },
    "from": "1668696049738",
    "to": "1668699649738"
}