gir1.2-dbusmenu-gtk3-0.4 16.04.1+18.04.20171206-0ubuntu2 (amd64 binary) in ubuntu bionic

 libdbusmenu passes a menu structure across DBus so that a program can
 create a menu simply without worrying about how it is displayed on the
 other side of the bus.
 .
 This package can be used by other packages using the GIRepository format to
 generate dynamic bindings for libdbusmenu-gtk4.