Ask whether the daemon owning the name is a GPaste 45 or 50, which serves an interface of its own rather than this one: what a package update leaves running until the session ends, and what a client of this version can never reach (g_paste_util_reexecute_legacy_daemon ()).
The daemon's path is asked what it serves: GDBus answers an unknown method alike for such a daemon and for a current one that owns the name but has yet to export anything.
| client |
a Client |
| cancellable | |
| callback |
called with the answer |
| user_data |
data for |