See Projects that aren't meant to generate a wheel and `pyproject.toml` for the discussion of using pyproject.toml
for projects which are not meant to build a wheel. I suspect you will need to see that conversation resolved in a way that makes pyproject.toml
work for that scenario before you can try and generalize it as the format to use regardless of whether it’s stored as a separate file or embedded in a .py
file.
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