Man pages matching name catmandu::directoryindex in section 3pm:

Catmandu::DirectoryIndex.3pm.en	debian 10 / libcatmandu-filestore-perl
Catmandu::DirectoryIndex.3pm.en	debian 11 / libcatmandu-filestore-perl
Catmandu::DirectoryIndex.3pm.en	debian 12 / libcatmandu-filestore-perl