{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "UsageMetricBreakdown",
  "type": "object",
  "properties": {
    "total": {
      "type": "string",
      "description": "The total usage value",
      "example": "1695",
      "x-nullable": true
    },
    "environment_types": {
      "$ref": "#/definitions/EnvironmentTypeBreakdown"
    },
    "site_types": {
      "$ref": "#/definitions/SiteTypeBreakdown"
    }
  },
  "description": "Usage metric with breakdown by environment and site types"
}