Flags can be passes as str (#390) #825

Job	Run time
Build sdist	47s
Test Linting	19s
Build wheels on ubuntu-latest	1m 23s
Test Docs	41s
Build wheels on windows-latest	3m 7s
Build wheels on macos-latest	2m 16s
Test Codegen	1m 5s
Test Linux py37	1m 18s
Test Examples	1m 34s
Test Linux py38	1m 13s
Test Linux py39	1m 13s
Test Imports	15s
Test PyInstaller	1m 59s
Test Linux py310	1m 17s
Test Linux py311	1m 17s
Publish to Github and Pypi	0s
	19m 44s

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