Flags can be passed as str #823

Job	Run time
Test Docs	28s
Test Linting	17s
Build wheels on ubuntu-latest	1m 23s
Build sdist	41s
Build wheels on windows-latest	3m 35s
Build wheels on macos-latest	1m 40s
Test Linux py37	1m 12s
Test Linux py38	1m 4s
Test Codegen	1m 1s
Test Linux py39	1m 32s
Test Examples	1m 28s
Test Linux py310	1m 15s
Test Linux py311	1m 10s
Test Imports	25s
Test PyInstaller	2m 9s
Publish to Github and Pypi	0s
	19m 20s

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