{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "attributeNames": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[0-9a-zA-Z_-]{1,255}$"
      },
      "maxItems": 1000
    }
  }
}