Dart APIunself_local_databaseCollectionDataid id property Null safety String id final Implementation final String id; unself_local_database unself_local_database CollectionData id property CollectionData class Constructors CollectionData fromJson Properties created createRule deleteRule extra hashCode id listRule name runtimeType system type updated updateRule viewRule Methods copyWith noSuchMethod toColumns toCompanion toJson toJsonString toString Operators operator ==