Man pages matching name data::dump::oneline in section 3pm:

Data::Dump::OneLine.3pm.en	debian 10 / libdata-dump-oneline-perl
Data::Dump::OneLine.3pm.en	debian 11 / libdata-dump-oneline-perl
Data::Dump::OneLine.3pm.en	debian 12 / libdata-dump-oneline-perl