Man pages matching name masonx::request::withmultisession in section 3pm:

MasonX::Request::WithMultiSession.3pm.en	debian 10 / libmasonx-request-withapachesession-perl
MasonX::Request::WithMultiSession.3pm.en	debian 11 / libmasonx-request-withapachesession-perl
MasonX::Request::WithMultiSession.3pm.en	debian 12 / libmasonx-request-withapachesession-perl