ayatana-indicator-session 0.4.2-2 (s390x binary) in ubuntu cosmic

 This Ayatana Indicator is designed to be placed on the right side of a
 panel and give the user easy control for changing their instant message
 status. Switching to another user. Starting a guest session. Or
 controlling the status of their own session.
 .
 It requires some way to be hosted into a panel. For the MATE Panel the
 appropriate package is mate-indicator-applet. For the Xfce Panel the
 appropriate package is xfce4-indicator-plugin.