{

"oneOf": [{
  "type": "object",
  "optional": true,
  "required": [
    "lastAccess",
    "eTag",
    "hitCount"
  ],
  "properties": {
    "expires": {
      "type": "string"
    },
    "lastAccess": {
      "type": "string"
    },
    "eTag": {
      "type": "string"
    },
    "hitCount": {
      "type": "integer"
    },
    "comment": {
      "type": "string"
    }
  }
}, {
  "type": null,
  "additionalProperties": false
}]

}