GObject
  FlatpakRef
    FlatpakBundleRef
    FlatpakInstalledRef
    FlatpakRelatedRef
    FlatpakRemoteRef
  FlatpakInstallation
  FlatpakInstance
  FlatpakRemote
  FlatpakTransaction
  FlatpakTransactionOperation
  FlatpakTransactionProgress
GInterface
  GTypePlugin
  GInitable
  GFile
