Multilanguage websites

This is a question more than an issue.
I can't find any info about implementing llms.txt on multilanguage sites.
For example a site that has different path per language:
site.com/en/
site.com/es/
site.com/it/
Should we have 1 llms.txt file in each directory?
Thanks

No file, test, or entry point is named. Review the llms.txt guidance and the conventions for localized paths, then determine whether the project documents one file per language directory or another arrangement. Done means adding a clear, decided explanation for multilanguage sites.

Written by the indexing model from the issue text.