Man pages matching name devel::symdump in section 3pm:

Devel::Symdump.3pm.en	debian 10 / libdevel-symdump-perl
Devel::Symdump.3pm.en	debian 11 / libdevel-symdump-perl
Devel::Symdump.3pm.en	debian 12 / libdevel-symdump-perl