Dart APIunself_local_databaseCollectionOrm$columns $columns property Null safety @override List<GeneratedColumn<Object>> $columns final All columns from this table or view. Implementation @override final List<GeneratedColumn> $columns; unself_local_database unself_local_database CollectionOrm<D> $columns property CollectionOrm class Constructors CollectionOrm Properties $columns $primaryKey actualTableName aliasedName asDslTable attachedDatabase columnsByName customConstraints dontWriteConstraints entityName hashCode id isStrict primaryKey runtimeType tableName uniqueKeys withoutRowId Methods blob boolean createAlias dateTime int64 integer intEnum map mapFromCompanion noSuchMethod real text textEnum toString validateIntegrity Operators operator ==