Transform fairseq model to huggingface's transformers model

[pooruss]

I changed the convert code in line 56 from

roberta_sent_encoder = roberta.model.encoder.sentence_encoder

to

roberta_sent_encoder = roberta.model.decoder.sentence_encoder

However another error occurred:

AttributeError: 'MultiheadAttention' object has no attribute 'k_proj'

I'm not sure if we should modify the convert code first according to the kepler code and this is the right way to convert.

My transformers version is 2.0.0, and fairseq 0.9.0