GitLab

* feat: close #26566, changed model & config files to accept arbitary in and out channels

* updated docstrings

* fix: linter error

* fix: update Copy docstrings

* fix: linter update

* fix: rename num_channels_in to num_channels to prevent breaking changes

* fix: make num_channels_out None per default

* Update src/transformers/models/swin2sr/configuration_swin2sr.py
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>

* fix: update tests to include num_channels_out

* fix:linter

* fix: remove normalization with precomputed rgb values when #input_channels!=#output_channels

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Co-authored-by: marvingabler <marvingabler@outlook.de>
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>