Object Hierarchy

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