toJson method
Implementation
Map<String, dynamic> toJson() => {
'prices': List<dynamic>.from(
prices!.map((x) => List<dynamic>.from(x.map((x) => x)))),
'market_caps': List<dynamic>.from(
marketCaps!.map((x) => List<dynamic>.from(x.map((x) => x)))),
'total_volumes': List<dynamic>.from(
totalVolumes!.map((x) => List<dynamic>.from(x.map((x) => x)))),
};