[xwiki-devs] How to get all versions of an attachment via XML-RPC?

Hello, we are developing an application which uses the XML-RPC API of XWiki. It is the only way to get to the data stored in the wiki in our case (except DB access, which we want to avoid in first place). In our data model there is a media entity which serves as a container for the revisions of this given media entity. That means I need all the versions of an attachment, not just the current/latest version. I do not see a way to get to these data via the XML-RPC client interface. Is there a way to get all the versions of an attachment? And if so, is there also a way to determine the version number of a given attachment? Thx in advance for your answers!