toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (appVersion != null) 'appVersion': appVersion!,
if (languageCode != null) 'languageCode': languageCode!,
if (platformVersion != null) 'platformVersion': platformVersion!,
if (timeZone != null) 'timeZone': timeZone!,
};