Man pages matching name monitoring::icinga2::client::rest in section 3pm:

Monitoring::Icinga2::Client::REST.3pm.en	debian 10 / libmonitoring-icinga2-client-rest-perl
Monitoring::Icinga2::Client::REST.3pm.en	debian 11 / libmonitoring-icinga2-client-rest-perl
Monitoring::Icinga2::Client::REST.3pm.en	debian 12 / libmonitoring-icinga2-client-rest-perl