Man pages matching name graph::easy::as_graphml in section 3pm:

Graph::Easy::As_graphml.3pm.en	debian 10 / libgraph-easy-perl
Graph::Easy::As_graphml.3pm.en	debian 11 / libgraph-easy-perl
Graph::Easy::As_graphml.3pm.en	debian 12 / libgraph-easy-perl