How can I get enabled languages?

Hello:

I'm trying to get the list of enabled languages in a expression rule, but I cannot find a good way to do it.

I noticed that every time you enable a new language in the admin console a new tab is available in the process model properties to configure this new language. I could get the model process properties and extract the different language options but obviously this is not a good idea.

By now what I have is a constant with the multiple language options, but this is not ideal since requires extra configuration.

Do you know a different way to do it?

Thanks in advance.