Man pages matching name lwp::useragent::role::chicaching::simplekeygen in section 3pm:

LWP::UserAgent::Role::CHICaching::SimpleKeyGen.3pm.en	debian 10 / liblwp-useragent-chicaching-perl
LWP::UserAgent::Role::CHICaching::SimpleKeyGen.3pm.en	debian 11 / liblwp-useragent-chicaching-perl
LWP::UserAgent::Role::CHICaching::SimpleKeyGen.3pm.en	debian 12 / liblwp-useragent-chicaching-perl