toValue method
Implementation
String toValue() {
switch (this) {
case TreatMissingData.breaching:
return 'breaching';
case TreatMissingData.notBreaching:
return 'notBreaching';
case TreatMissingData.ignore:
return 'ignore';
case TreatMissingData.missing:
return 'missing';
}
}