toJson method
Implementation
Map<String, dynamic> toJson() {
final result = <String, dynamic>{};
result[appNameField] = appName;
result[packageNameField] = packageName;
result[appVersionField] = appVersion;
result[appBuildNumberField] = appBuildNumber;
result[osField] = os;
result[osVersionField] = osVersion;
result[screenSizeField] = screenSize;
return result;
}