Man pages matching name moosex::multimethods in section 3pm:

MooseX::MultiMethods.3pm.en	debian 10 / libmoosex-multimethods-perl
MooseX::MultiMethods.3pm.en	debian 11 / libmoosex-multimethods-perl
MooseX::MultiMethods.3pm.en	debian 12 / libmoosex-multimethods-perl