Function libflatpak_sys::flatpak_installation_update_appstream_sync

pub unsafe extern "C" fn flatpak_installation_update_appstream_sync(
    self_: *mut FlatpakInstallation,
    remote_name: *const c_char,
    arch: *const c_char,
    out_changed: *mut gboolean,
    cancellable: *mut GCancellable,
    error: *mut *mut GError
) -> gboolean