cannot import name 'BigBirdModel' from 'transformers'
when I write the “from transformers import BigBirdModel”， the error is “cannot import name 'BigBirdConfig' from 'transformers'”,how to solve the problem? thank you. 
Hello! Please respect the issue template so that we can help you. Big Bird is only available in the latest transformers version, do you have this version in your setup?<|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

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