{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "StatisticValue",
  "type": "object",
  "properties": {
    "ssid": {
      "type": "string",
      "description": "Statistics identifier"
    },
    "value": {
      "type": "string",
      "description": "Current value (type depends on the statistic)"
    },
    "timestamp": {
      "type": "string",
      "description": "When the value was recorded"
    },
    "unit": {
      "type": "string",
      "description": "Unit of measurement"
    }
  }
}