{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "rows"
  ],
  "properties": {
    "rows": {
      "type": "array",
      "items": {
        "type": "array"
      }
    },
    "warning_db_failure": {
      "type": "string",
      "description": "A message if the database encounters an error partway through"
    }
  }
}