Air Purifer is Supported, but Sleep Mode is not an Option
**Device info (please complete the following information, which can be found in [log](https://github.com/tuya/tuya-homebridge/wiki/How-To-Get-Logs)):**
**request path = /v1.0/iot-01/associated-users/devices**

TuyaOpenAPI response: 

{
  "result": {
    "devices": [
      {
        "active_time": 1621223735,
        "biz_type": 18,
        "category": "kj",
        "create_time": 1621217994,
        "icon": "smart/icon/ay15143342475988rXpF/64290320ffdd48b7dc6f2e64df543d4c.png",
        "id": "021334723c6105ceabe9",
        "ip": "xxxxxxxxxxxxxxxx",
        "lat": "39.5",
        "local_key": "xxxxxxxxxxxxxxxx",
        "lon": "-119.85",
        "model": "",
        "name": "Air purifier",
        "online": true,
        "owner_id": "6213608",
        "product_id": "sferhht3hjkc942e",
        "product_name": "KJ210F-142-01-C ï¼è¿å¤å®å¶æ¬¾ï¼",
        "status": [
          {
            "code": "switch",
            "value": false
          },
          {
            "code": "pm25",
            "value": 0
          },
          {
            "code": "speed",
            "value": "1"
          },
          {
            "code": "filter",
            "value": 100
          },
          {
            "code": "lock",
            "value": false
          }
        ],
        "sub": false,
        "time_zone": "-08:00",
        "uid": "az1554248276698SpyAt",
        "update_time": 1715531599,
        "uuid": "xxxxxxxxxxxxxxxx"
      }
    ]
  }
}

There should be another status for Sleep Mode


**Device functions (please complete the following information, which can be found in [log](https://github.com/tuya/tuya-homebridge/wiki/How-To-Get-Logs)):**
**request path = /v1.0/devices/functions**

Same **device Id**, like this:
{
  "category": "kj",
  "devices": [
    "021334723c6105ceabe9"
  ],
  "functions": [
    {
      "code": "switch",
      "desc": "switch",
      "name": "switch",
      "type": "Boolean",
      "values": "{}"
    },
    {
      "code": "speed",
      "desc": "speed",
      "name": "speed",
      "type": "Enum",
      "values": "{\"range\":[\"1\",\"2\",\"3\"]}"
    },
    {
      "code": "lock",
      "desc": "lock",
      "name": "lock",
      "type": "Boolean",
      "values": "{}"
    }
  ],
  "product_id": "sferhht3hjkc942e"
}


There should be a fourth function, sleep mode, which controls whether or not the air purifier is in sleep mode. This is accessible through the app. 

![image](https://github.com/tuya/tuya-homebridge/assets/65330257/d3453619-96fa-499c-a767-4d1c6f498ca0)

