libdbus-glib-1-doc 0.110-1 (amd64 binary) in ubuntu bionic

 D-Bus is a message bus, used for sending messages between applications.
 Conceptually, it fits somewhere in between raw sockets and CORBA in
 terms of complexity.
 .
 This package provides the HTML documentation for dbus-glib,
 a deprecated GLib-based D-Bus library. New code should use GDBus, part
 of GLib, instead.
 .
 See the dbus description for more information about D-Bus in general.