Man pages matching name pithub::repos::collaborators in section 3pm:

Pithub::Repos::Collaborators.3pm.en	debian 10 / libpithub-perl
Pithub::Repos::Collaborators.3pm.en	debian 11 / libpithub-perl
Pithub::Repos::Collaborators.3pm.en	debian 12 / libpithub-perl