toJson method
Converts an object to JSON.
Implementation
@override
Map<String, dynamic> toJson() {
final returnValue = <String, dynamic>{
"\$": "0x38fe25b7",
"chatId": chatId,
"maxDate": maxDate.toIso8601String(),
"date": date.toIso8601String(),
};
// Finished toJson.
return returnValue;
}