Bugfix/alexsherstinsky/fix none check for attention factor in rope scaling 2024 08 28 0
Author: alexsherstinsky
Pull request: yes

# What does this PR do?
* This PR fixes a small bug in "src/transformers/modeling_rope_utils.py" whereby the check for `attention_factor` can raise `"TypeError: '<' not supported between instances of 'NoneType' and 'int'"` if `attention_factor` is `None`.
* The test `tests/utils/test_modeling_rope_utils.py::RopeTest::test_longrope_rope_numerically` is extended to ensure that the `config` is validated and the above error is not raised.

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Fixes # (issue)


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Comments:
cc @ArthurZucker 

Hello, @LysandreJik and @ArthurZucker -- could you please help me with some guidance in terms of what I need to do in order to get this pull request reviewed (and merged, if approved)?  Please feel free to make edits on my behalf.  Thank you very much in advance for your time.

Hey @alexsherstinsky, Arthur will review your PR as soon as he has a bit of bandwidth available! Sorry for the delay, the repo is particularly active right now. 

> Hey @alexsherstinsky, Arthur will review your PR as soon as he has a bit of bandwidth available! Sorry for the delay, the repo is particularly active right now.

@LysandreJik Many thanks to you and @ArthurZucker for reviewing and merging -- your libraries are a treasure trove!

🤗 thanks for your warm words