/usr/share/gnome-shell/search-providers/quodlibet-search-provider.ini is in quodlibet 3.9.1-1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | [Shell Search Provider]
DesktopId=quodlibet.desktop
BusName=net.sacredchao.QuodLibet.SearchProvider
ObjectPath=/net/sacredchao/QuodLibet/SearchProvider
Version=2
|