toJson method Null safety

Map<String, dynamic> toJson()

Implementation

Map<String, dynamic> toJson() => {
      "items": items == null
          ? null
          : List<dynamic>.from(items!.map((x) => x.toJson())),
      "summary": summary == null
          ? null
          : List<dynamic>.from(summary!.map((x) => x.toJson())),
      "configDeliveryPeriod": configDeliveryPeriod == null
          ? null
          : configDeliveryPeriod!.toJson(),
      "enablePickAtStore": enablePickAtStore,
    };