Man pages matching name markdent::handler::htmlstream::document in section 3pm:

Markdent::Handler::HTMLStream::Document.3pm.en	debian 10 / libmarkdent-perl
Markdent::Handler::HTMLStream::Document.3pm.en	debian 11 / libmarkdent-perl
Markdent::Handler::HTMLStream::Document.3pm.en	debian 12 / libmarkdent-perl