Multi-language strings supported by GraphQL using @lang directive

By looking at the docs I couldn’t figure out if GraphQL supports Multi-language strings.

Is it implemented or is in the roadmap? Or is there a way to implement it by writing a custom directive?

At this time, the language directive is only for the DQL endpoints /query and /mutate or grpc. I have not seen the inclusion of the language directive on any graphql roadmap for DQL. Not saying it doesn’t exist, just I haven’t seen talk about it anywhere.