toMap method
Implementation
Map<String, dynamic> toMap() => <String, dynamic>{
"baseAsset": baseAsset?.number,
"quoteAsset": quoteAsset?.number,
"unit": unit,
"baseUnitPrice": baseUnitPrice,
"buyUnitPrice": buyUnitPrice,
"sellUnitPrice": sellUnitPrice,
"updatedAt": updatedAt?.toIso8601String(),
};