FEAT: implement `unevaluated_expression` decorator #235

Job	Run time
pytest / Determine job matrix	7s
style / Determine skipped pre-commit hooks	7s
doc / nb / Execute and build documentation	3m 30s
doc / linkcheck / Check external links	1m 30s
style / Run taplo through pre-commit	31s
style / Run local pre-commit hooks	3m 40s
pytest / Run unit tests (3.10, ubuntu-22.04)	1m 2s
pytest / Run unit tests (3.11, ubuntu-22.04)	58s
pytest / Run unit tests (3.7, ubuntu-22.04)	1m 11s
pytest / Run unit tests (3.9, ubuntu-22.04)	1m 2s
pytest / Run unit tests (3.8, ubuntu-22.04, ampform)	1m 54s
pytest / Run unit tests (3.9, macos-12)	1m 32s
doc / Upload to GitHub Pages	0s
style / Push changes	0s
	17m 4s

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