shouldBeRequired property
FutureOr<bool?> Function(GtfsDataset dataset, List<FieldDefinition> header, MapRecord record)?
shouldBeRequired
final
Should the field be required. true
means it's mandatory. null
means
it's optional. false
means it's forbidden.
existingFields
is the list of parsed fields in the first line of the file.
Implementation
final FutureOr<bool?> Function(
GtfsDataset dataset,
List<FieldDefinition> header,
MapRecord record,
)?
shouldBeRequired;