{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "interval": {
      "type": ["null", "string"]
    },
    "downloads_total": {
      "type": ["null", "number"]
    },
    "downloads_percent": {
      "type": ["null", "number"]
    }
  }
}