* refactor: remove unused imports
* fix: replace NotImplemented with NotImplementedError
* refactor: resolve E722 (do not use bare 'except')
* refactor: remove unused variable
* refactor: remove unused imports
* refactor: ignore unused imports that will be used in the future
* refactor: resolve W293 (blank line contains whitespace)
* refactor: resolve F541 (f-string is missing placeholders)
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Co-authored-by: afourney <adamfo@microsoft.com>
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