Tests

Structured flowsheet wrapper util #8446

Job	Run time
Compatibility tests	4m 41s
Check code formatting (Black)	35s
Check Spelling	7s
Pylint	0s
Build Sphinx docs	0s
pytest (py${{ matrix.python-version }}/${{ matrix.os }})	0s
Upload coverage report (Codecov)	-1s
	5m 22s

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