Swin2sr
# What does this PR do?

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Fixes #19568


## Who can review?
@NielsRogge 


WIP. 

Found the equivalents for PatchEmb, PatchMerging, SwinV2Stage<|||||>Hi @venkat-natchi,

I actually played around with the Swin2SR model this weekend and got a [working implementation](https://github.com/NielsRogge/transformers/tree/add_swin2sr/src/transformers/models/swin2sr) already.

I see you're still at the start of the process, so would you be interested in working on another model [from this list](https://github.com/huggingface/transformers/issues?q=is%3Aissue+is%3Aopen+label%3A%22New+model%22)?

<|||||>Sure, make sense. I was actually going through the papers in the weekend to get the high level understanding of it. 

I thought of picking [this](https://github.com/huggingface/transformers/issues/19631) one up now, but seems to be closed. Do you know why?

If possible could you point me to any one model, which was not taken up so far. Thanks. 


<|||||>Do you have an email address? I'll set up a Slack channel so we can discuss :)<|||||>sure. Mine is venkatachalam.natchiappan@gmail.com<|||||>Hey, @venkat-natchi, would you like to collaborate on Adding EDSR to HuggingFace? I closed that issue because I felt it was irrelevant.<|||||>> Hey, @venkat-natchi, would you like to collaborate on Adding EDSR to HuggingFace? I closed that issue because I felt it was irrelevant.

Sure, I am interested. <|||||>That's great! then i will reopen that issue and tag u there<|||||>I'll close this PR as you'll work on a new model.