fix aes argument typehint according to PEP0484

[FFroehlich]

https://www.python.org/dev/peps/pep-0484/#arbitrary-argument-lists-and-default-argument-values

[has2k1]

I see the mix-up. kwargs: dict in the docstring means that kwargs is a dict, it does not say anything about the type of keys or values in the dict. The libraries in the scientific python ecosystem document keyword parameters the same way. This is different from pep-0484 were you give the type hint of the keyword parameters.

I wonder, is an IDE is interpreting kwargs: dict as a type hint for the values?

[FFroehlich]

I see the mix-up. kwargs: dict in the docstring means that kwargs is a dict, it does not say anything about the type of keys or values in the dict. The libraries in the scientific python ecosystem document keyword parameters the same way. This is different from pep-0484 were you give the type hint of the keyword parameters.

I wonder, is an IDE is interpreting kwargs: dict as a type hint for the values?

Correct, PyCharm is interpreting this as typehint for the values. Do you believe this is an issue on their end? I see that pep-0484 doesn't really apply here, yet I would argue that the same type of type documentation is plausible here.

[has2k1]

Then, do you know if dict[str, object] would be treated better?

[FFroehlich]

Then, do you know if dict[str, object] would be treated better?

It is treated the same, so it interprets that the values should be dicts.