Dart APIunself_local_databaseCollectionCompanionoptions options property Null safety Value<String?> options final Implementation final Value<String?> options; unself_local_database unself_local_database CollectionCompanion options property CollectionCompanion class Constructors CollectionCompanion insert Properties createRule deleteRule hashCode id listRule name options runtimeType system type updateRule viewRule Methods copyWith noSuchMethod toColumns toString Operators operator == Static methods custom