Man pages matching name net::dns::sec::keyset in section 3pm:

Net::DNS::SEC::Keyset.3pm.en	debian 10 / libnet-dns-sec-perl
Net::DNS::SEC::Keyset.3pm.en	debian 11 / libnet-dns-sec-perl
Net::DNS::SEC::Keyset.3pm.en	debian 12 / libnet-dns-sec-perl