Man pages matching name test::poe::client::tcp in section 3pm:

Test::POE::Client::TCP.3pm.en	debian 10 / libtest-poe-client-tcp-perl
Test::POE::Client::TCP.3pm.en	debian 11 / libtest-poe-client-tcp-perl
Test::POE::Client::TCP.3pm.en	debian 12 / libtest-poe-client-tcp-perl