{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "UsageRollup",
  "type": "object",
  "properties": {
    "average": {
      "type": "string",
      "format": "int64",
      "x-nullable": true,
      "description": "The average value of the metric."
    },
    "sum": {
      "type": "string",
      "format": "int64",
      "x-nullable": true,
      "description": "The total sum value of the metric."
    },
    "latest": {
      "$ref": "#/definitions/LatestMetricValue",
      "x-nullable": true,
      "description": "The latest value of the metric."
    }
  },
  "description": "A metric rollup."
}