lang field in Multilingual ASR models
Hello, 

I have a question about Multilingual ASR models.

In a Multilingual ASR model, when using an Aggregate tokenizer, the "lang" field needs to be added in the manifest. From what I understand from tech blogs and tutorials, the "lang" field is primarily used to assign offset indices to tokens for each language during token aggregation.

However, I'm curious if the "lang" field in Multilingual models is utilized for purposes other than token indexing. For example, I would like to know if it is designed to provide language information in the form of a one-hot vector or embedding vector, which can assist in the training process of the model.

Thank you 