|  |  |  |  | 
    GObject
    ├── FlatpakRef
    │   ├── FlatpakBundleRef
    │   ├── FlatpakInstalledRef
    │   ├── FlatpakRelatedRef
    │   ╰── FlatpakRemoteRef
    ├── FlatpakInstallation
    ├── FlatpakInstance
    ├── FlatpakRemote
    ├── FlatpakTransaction
    ├── FlatpakTransactionOperation
    ╰── FlatpakTransactionProgress