Dart APIunself_modelArchiveFormatapp app property Null safety App app inherited app is the App the ArchiveFormat is for. Implementation App get app => throw _privateConstructorUsedError; unself_model unself_model ArchiveFormat app property ArchiveFormat class Constructors ArchiveFormat fromJson Properties app constraint copyWith created extra format hashCode id mappings runtimeType updated version Methods noSuchMethod toJson toString Operators operator ==