toJson method
Implementation
Map<String, dynamic> toJson() => {
"commercialTire": commercialTire?.toJson(),
"construction": construction?.toJson(),
"diameter": diameter?.toJson(),
"extraLoad": extraLoad?.toJson(),
"loadIndex": loadIndex?.toJson(),
"prettifiedString": prettifiedString?.toJson(),
"prettifiedStringWithMeta": prettifiedStringWithMeta?.toJson(),
"ratio": ratio?.toJson(),
"speedRating": speedRating?.toJson(),
"text": text?.toJson(),
"vehicleType": vehicleType?.toJson(),
"width": width?.toJson(),
"winter": winter?.toJson(),
};