Sengled e1d-g73 window and door sensor DDF

Hi. This is my first effort at a DDF. Put together from editor default and examining DDFs for similar devices.

It works ok for me but I’d be keen to get any feedback on it.

{
  "schema": "devcap1.schema.json",
  "manufacturername": "sengled",
  "modelid": "E1D-G73",
  "vendor": "Sengled",
  "product": "Smart Window and Door Sensor",
  "sleeper": true,
  "status": "Silver",
  "path": "/devices/sengled/e1d-g73.json",
  "subdevices": [
    {
      "type": "$TYPE_OPEN_CLOSE_SENSOR",
      "restapi": "/sensors",
      "uuid": [
        "$address.ext",
        "0x01",
        "0x0500"
      ],
      "fingerprint": {
        "profile": "0x0104",
        "device": "0x0402",
        "endpoint": "0x01",
        "in": [
          "0x0000",
          "0x0001",
          "0x0500"
        ]
      },
      "items": [
        {
          "name": "attr/id"
        },
        {
          "name": "attr/lastannounced"
        },
        {
          "name": "attr/lastseen"
        },
        {
          "name": "attr/manufacturername"
        },
        {
          "name": "attr/modelid"
        },
        {
          "name": "attr/name"
        },
        {
          "name": "attr/swversion"
        },
        {
          "name": "attr/type"
        },
        {
          "name": "attr/uniqueid"
        },
        {
          "name": "config/battery",
          "description": "The current device battery level in 0–100 %.",
          "awake": true,
          "parse": {
            "at": "0x0021",
            "cl": "0x0001",
            "ep": 1,
            "eval": "Item.val = Attr.val / 2"
          },
          "default": 0
        },
        {
          "name": "config/enrolled",
          "description": "State of IAS enrollment process.",
          "public": false
        },
        {
          "name": "config/on"
        },
        {
          "name": "config/pending",
          "description": "Pending tasks to configure the device."
        },
        {
          "name": "config/reachable"
        },
        {
          "name": "state/lastupdated"
        },
        {
          "name": "state/lowbattery",
          "description": "True when the device battery runs low."
        },
        {
          "name": "state/open",
          "description": "True when open is detected."
        },
        {
          "name": "state/tampered",
          "description": "True when the device tampered alarm was triggered."
        }
      ]
    }
  ],
  "bindings": [
    {
      "bind": "unicast",
      "src.ep": 1,
      "dst.ep": 1,
      "cl": "0x0001",
      "report": [
        {
          "at": "0x0021",
          "dt": "0x20",
          "min": 60,
          "max": 3600,
          "change": "0x00000001"
        }
      ]
    },
    {
      "bind": "unicast",
      "src.ep": 1,
      "dst.ep": 1,
      "cl": "0x0500"
    }
  ]
}