mate-polkit-bin 1.18.2-2 (s390x binary) in ubuntu bionic

 The mate-polkit package provides a D-Bus session bus service that is used to
 bring up authentication dialogs used for obtaining privileges.
 .
 This package contains an executable wrapper script for the MATE policy kit
 authentication agent.
 .
 This package eases using mate-polkit as PolicyKit-1 authentication agent on
 non-MATE desktop environments that don't auto-launch their own authentication
 agent (e.g., i3, awesome, ratpoison and alike).