Man pages matching name sympa::request::handler::open_list in section 3sympa:

Sympa::Request::Handler::open_list.3sympa.en	debian 10 / sympa
Sympa::Request::Handler::open_list.3sympa.en	debian 11 / sympa
Sympa::Request::Handler::open_list.3sympa.en	debian 12 / sympa