Man pages matching name catmandu::importer::yaml in section 3pm:

Catmandu::Importer::YAML.3pm.en	debian 10 / libcatmandu-perl
Catmandu::Importer::YAML.3pm.en	debian 11 / libcatmandu-perl
Catmandu::Importer::YAML.3pm.en	debian 12 / libcatmandu-perl