+@defun notifications-get-server-information &optional bus
+Return information on the notification server, a list of strings.
+@var{bus} can be a string denoting a D-Bus connection, the default is
+@code{:session}. The returned list is @code{(@var{name} @var{vendor}
+@var{version} @var{spec-version})}.
+
+@table @var
+@item name
+The product name of the server.
+
+@item vendor
+The vendor name. For example, @samp{"KDE"}, @samp{"GNOME"}.
+
+@item version
+The server's version number.
+
+@item spec-version
+The specification version the server is compliant with.
+@end table
+
+If @var{SPEC_VERSION} is @code{nil}, the server supports a
+specification prior to @samp{"1.0"}.
+@end defun
+