{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "type": "array",
    "minLength": 1,
    "items": {
        "type": "object",
        "properties": {
            "code": {
                "type": "integer",
                "minimum": 1,
                "maximum": 99
            },
            "title": {
                "type": "string",
                "minLength": 4
            },
            "group_title": {
                "type": "string",
                "minLength": 4
            },
            "group_slug": {
                "type": "string",
                "enum": [
                    "trucks",
                    "buses",
                    "specialized_vehicles",
                    "mototransport",
                    "trailers",
                    "semitrailers",
                    "cars"
                ]
            }
        },
        "additionalProperties": false
    }
}