Man pages matching name moosex::singleton::role::meta::instance in section 3pm:

MooseX::Singleton::Role::Meta::Instance.3pm.en	debian 10 / libmoosex-singleton-perl
MooseX::Singleton::Role::Meta::Instance.3pm.en	debian 11 / libmoosex-singleton-perl
MooseX::Singleton::Role::Meta::Instance.3pm.en	debian 12 / libmoosex-singleton-perl