policykit-1 0.105-20ubuntu0.18.04.1 (s390x binary) in ubuntu bionic

 PolicyKit is an application-level toolkit for defining and handling the policy
 that allows unprivileged processes to speak to privileged processes.
 .
 It is a framework for centralizing the decision making process with respect to
 granting access to privileged operations for unprivileged (desktop)
 applications.