Man pages matching name template::plugin::posix in section 3pm:

Template::Plugin::POSIX.3pm.en	debian 10 / libtemplate-plugin-posix-perl
Template::Plugin::POSIX.3pm.en	debian 11 / libtemplate-plugin-posix-perl
Template::Plugin::POSIX.3pm.en	debian 12 / libtemplate-plugin-posix-perl