{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "UsageReadout",
  "type": "object",
  "properties": {
    "at_unix_ms": {
      "type": "integer",
      "format": "uint64",
      "minimum": 0
    },
    "plan_quota": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/PlanQuota"
      }
    },
    "schema_id": {
      "type": "string"
    }
  },
  "additionalProperties": false,
  "required": [
    "schema_id",
    "at_unix_ms",
    "plan_quota"
  ],
  "$defs": {
    "PlanQuota": {
      "description": "One window of the subscription plan, as the provider reported it.",
      "type": "object",
      "properties": {
        "observed_at_unix_ms": {
          "description": "When this window was last reported. Its age in a readout is the\nreadout's `at_unix_ms` minus this.",
          "type": "integer",
          "format": "uint64",
          "minimum": 0
        },
        "resets_at_unix_ms": {
          "type": "integer",
          "format": "uint64",
          "minimum": 0
        },
        "status": {
          "type": "string"
        },
        "utilization_permille": {
          "description": "How much of the window was used when it was observed, in thousandths;\n`None` once the window has reset (`status` is then `expired`), because\nthe old reading says nothing about the new window.",
          "type": [
            "integer",
            "null"
          ],
          "format": "uint32",
          "minimum": 0
        },
        "window": {
          "type": "string"
        }
      },
      "additionalProperties": false,
      "required": [
        "window",
        "resets_at_unix_ms",
        "status",
        "observed_at_unix_ms"
      ]
    }
  }
}