Man pages matching name parse::cpan::packages::package in section 3pm:

Parse::CPAN::Packages::Package.3pm.en	debian 10 / libparse-cpan-packages-perl
Parse::CPAN::Packages::Package.3pm.en	debian 11 / libparse-cpan-packages-perl
Parse::CPAN::Packages::Package.3pm.en	debian 12 / libparse-cpan-packages-perl