Man pages matching name dbix::class::introspectablem2m in section 3pm:

DBIx::Class::IntrospectableM2M.3pm.en	debian 10 / libdbix-class-introspectablem2m-perl
DBIx::Class::IntrospectableM2M.3pm.en	debian 11 / libdbix-class-introspectablem2m-perl
DBIx::Class::IntrospectableM2M.3pm.en	debian 12 / libdbix-class-introspectablem2m-perl