Are there any examples of cli plugins that support localization?

I was trying out a non-English locale and noticed that all the CLI plugins I had installed did not have French. I'd never thought of supporting different locales in my plugins.

AJOUTER/RETIRER UN PLUG-IN :
   plugins                                Répertorier les commandes des plug-in installés
   install-plugin                         Installer le plug-in d'interface de ligne de commande
   uninstall-plugin                       Désinstaller le plug-in d'interface de ligne de commande

COMMANDES DE PLUG-IN INSTALLEES :
   zero-downtime-push                     Perform a zero-downtime push of an application over the top of an old one
   delete-target                          Delete a saved target
   save-target                            Save current target

Do any plugins support non-English locales for an example of how to do it? Is it possible?