Man pages matching name svg::tt::graph::barline in section 3pm:

SVG::TT::Graph::BarLine.3pm.en	debian 10 / libsvg-tt-graph-perl
SVG::TT::Graph::BarLine.3pm.en	debian 11 / libsvg-tt-graph-perl
SVG::TT::Graph::BarLine.3pm.en	debian 12 / libsvg-tt-graph-perl