cl-bond 1.8.3-2ubuntu1 (amd64 binary) in ubuntu focal

 This package is part of Robot OS (ROS). This is the 'bond' process state
 machine library LISP bindings.
 .
 Bond is a mechanism for checking when another process has
 terminated. A bond allows two processes, A and B, to know when the
 other has terminated, either cleanly or by crashing. The bond remains
 connected until it is either broken explicitly or until a heartbeat
 times out.