toJson method Null safety
Implementation
Map<String, dynamic> toJson() => {
"title": title,
"value": value,
"additionalInfo": additionalInfo,
"currencySymbol": currencySymbol,
};
Map<String, dynamic> toJson() => {
"title": title,
"value": value,
"additionalInfo": additionalInfo,
"currencySymbol": currencySymbol,
};