{
    "properties": {
        "attributes": {
            "properties": {
                "integer": {
                    "title": "integer",
                    "type": "integer"
                },
                "string": {
                    "items": {
                        "type": "string"
                    },
                    "minItems": 1,
                    "title": "string",
                    "type": "array"
                }
            },
            "title": "feature attributes",
            "type": "object"
        }
    },
    "title": "DataType2",
    "type": "object"
}