{
    "definitions": {
        "date": {
            "format": "string",
            "type": "string"
        },
        "timestamp": {
            "format": "date-time",
            "type": "string"
        }
    },
    "properties": {
        "d": {
            "$ref": "#/definitions/date"
        },
        "ts": {
            "$ref": "#/definitions/timestamp"
        }
    },
    "type": "object"
}