Man pages matching name monitoring::livestatus::unix in section 3pm:

Monitoring::Livestatus::UNIX.3pm.en	debian 10 / libmonitoring-livestatus-perl
Monitoring::Livestatus::UNIX.3pm.en	debian 11 / libmonitoring-livestatus-perl
Monitoring::Livestatus::UNIX.3pm.en	debian 12 / libmonitoring-livestatus-perl