Man pages matching name moosex::types::undefinedtype in section 3pm:

MooseX::Types::UndefinedType.3pm.en	debian 10 / libmoosex-types-perl
MooseX::Types::UndefinedType.3pm.en	debian 11 / libmoosex-types-perl
MooseX::Types::UndefinedType.3pm.en	debian 12 / libmoosex-types-perl