[Question] < PING connectivity>

### Question

I found the interface documentation, ran the test code, and did not find it on the console.
```json
{
"monitor": {
"name": "Api-TanCloud.cn",
"app": "TanCloud",
"host": "192.167.25.11",
"intervals": 600,
"status": "string",
"description": "Availability monitoring of the SAAS website TanCloud",
"tags": [
{
"name": "app",
"tagValue": "23",
"color": "#ffff",
"description": "Used for monitoring mysql",
"type": "string"
}
]
},
"params": [
{
"monitorId": 875846754543,
"field": "port",
"paramValue": "8080",
"type": "string"
}
],
"detected": true,
"collector": "string"
}
```

```
{
"data": null,
"msg": "Cannot construct instance of `org.apache.hertzbeat.manager.pojo.dto.MonitorDto` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('monitor')\n at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 1, column: 3]",
"code": 1
}
```

Start with the interface documentation and the test request shown in the issue, then reproduce the PING connectivity call using the supplied JSON. Trace the MonitorDto deserialization error and confirm the expected request shape; done means the request is accepted or the required correction is documented.

Written by the indexing model from the issue text.