text: 
  
  TITLE
  Update FNet Fourier Transform
  
  COMMENTS
  20
  
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  BODY
  # What does this PR do?
  
  This PR changes the Fourier Transform according to the [latest updates](https://github.com/google-research/google-research/commit/4f7815fe3aaf71b811a0fb82ac8768a4e8ab0428#diff-4a2be83f4d2b702b206d3f64b2aeb209ac7a2d65fd28382916225463b984bc2c) to the FNet repository.
  
  I will update the configurations of the checkpoints if the changes look fine.
  
  @patrickvonplaten @LysandreJik @sgugger @patil-suraj 