GitLab

* add new longformer for question answering model

* add new config as well

* fix links

* fix links part 2

* first commit

* bug fixes

* better examples

* undo padding

* remove wrong VOCAB_FILES_NAMES

* License

* make style

* make isort happy

* unit tests

* integration test

* make `black` happy by undoing `isort` changes!!

* lint

* no need for the padding value

* batch_size not bsz

* remove unused type casting

* seqlen not seq_len

* staticmethod

* `bert` selfattention instead of `n2`

* uint8 instead of bool + lints

* pad inputs_embeds using embeddings not a constant

* black

* unit test with padding

* fix unit tests

* remove redundant unit test

* upload model weights

* resolve todo

* simpler _mask_invalid_locations without lru_cache + backward compatible masked_fill_

* increase unittest coverage

- support mbart-en-ro weights
- add MBartTokenizer

`generate` code that produces 99% identical summarizations to fairseq on CNN test data, with caching.

* Results same as fairseq
* Wrote a ton of tests
* Struggled with api signatures
* added some docs