LAFF transformer

[seanmacavaney]

@Mandeep-Rathee can you take a look to make sure this implementation looks right? It's based off the code here and here.

I've also packaged up laff into a huggingface model at macavaney/laff that allows it (and its tokenizer) to be loaded with from_pretrained, avoiding the stuff with hf_hub_download. Feel free to merge it into mandeep-rathee/laff-model if you like and I'll drop mine.

The next step will be writing a method to apply to a corpus graph.

[Mandeep-Rathee]

All looks good. We just need to add to update requirement.txt with transformers.

thanks

[seanmacavaney]

Thanks! It's set as an optional dependency, since the transformers package is pretty hefty and not necessary unless you're using the LAFF model.

[Mandeep-Rathee]

that's true. Great!! thanks a lot, @seanmacavaney