Man pages matching name glib::object::introspection in section 3pm:

Glib::Object::Introspection.3pm.en	debian 10 / libglib-object-introspection-perl
Glib::Object::Introspection.3pm.en	debian 11 / libglib-object-introspection-perl
Glib::Object::Introspection.3pm.en	debian 12 / libglib-object-introspection-perl