Multilingual Models

All model names use the following format: Helsinki-NLP/opus-mt-{src}-{tgt}:
If a model can output multiple languages, and you should specify a language code by prepending the desired output
  language to the src_text.
You can see a models's supported language codes in its model card, under target constituents, like in opus-mt-en-roa.
Note that if a model is only multilingual on the source side, like Helsinki-NLP/opus-mt-roa-en, no language
  codes are required.