{
  "type": "record",
  "name": "cws",
  "fields": [
    {
      "name": "definition",
      "type": "record",
      "fields": []
    },
    {
      "name": "features",
      "type": "map",
      "values": "long",
      "default": {}
    },
    {
      "name": "parameters",
      "type": "array",
      "items": "double",
      "default": []
    }
  ]
}