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

Catmandu::SRU.3pm.en	debian 10 / libcatmandu-sru-perl
Catmandu::SRU.3pm.en	debian 11 / libcatmandu-sru-perl
Catmandu::SRU.3pm.en	debian 12 / libcatmandu-sru-perl