Man pages matching name path::isdev::role::matcher::child::basename::matchregexp in section 3pm:

Path::IsDev::Role::Matcher::Child::BaseName::MatchRegexp.3pm.en	debian 10 / libpath-isdev-perl
Path::IsDev::Role::Matcher::Child::BaseName::MatchRegexp.3pm.en	debian 11 / libpath-isdev-perl
Path::IsDev::Role::Matcher::Child::BaseName::MatchRegexp.3pm.en	debian 12 / libpath-isdev-perl