This tool is used by Plasma Welcome Center in the Fedora's custom page for enabling/disabling third party repositories (see plasma-welcome-fedora). Such custom page run pkexec fedora-third-party enable (and disable too), which brings up a Polkit dialog prompt saying "Authentication is required to configure software repositories", and that message comes from this repository. And it is the only message not available for translation.
pkexec fedora-third-party enable
I'd like to propose having fedora-third-party, including both polkit messages and the messages from Python files. These would be made available in the Fedora Weblate to receive translations.
Before I start working on any PR I'd like to know if such implementation would be in the interested of the maintainer and would be accepted if it looks good.