Add initial helper for API keys

[epenet]

Add a RenaultClient with a set of API keys for an initial list of locales, and the ability to fetch the API keys for unknown locales.

[epenet]

@oncleben31 / @Quentame
Comment puis-je résoudre le problème avec typeguard?

[epenet]

Après avoir bien galéré sur les dépendances (en particulier autour de typeguard qui n'aimait pas mon fichier conftest.py pour les fixtures.) je crois que c'est bon pour un avis externe.

[oncleben31]

I don't see where you use typing-extension. is it necessary here ?

[epenet]

It is a dependency of aiohttp, and it was causing issues with mypy.
It seems to be sufficient inside dev dependencies to I will move it there now.

[oncleben31]

Strange sub dependencies should be managed installed by poetry. I will investigate. Can you confirm the version of poetry you have installed ?

[epenet]

Poetry version 1.1.4 on my machine, but the problems occured inside CI runs

[oncleben31]

Poetry version 1.1.x is new and has regression on export features (see python-poetry/poetry#3189).

When you use it locally poetry generate bad dependencies resolution in the poetry.lock file. This file is commited in git and reuse by the CI whatever poetry version we have pinned in the CI. So this could lead to strange results.

Do you mind trying to install locally poetry 1.0.10, remove the typing-extensions in pyproject.toml run the command poetry lock and check if you still have the issue with mypy ?

[epenet]

I have moved the api-keys to a helper module (not inside the Renault client)
I think now it's just the dependencies for mypy/test/typeguard that need to be checked.

[epenet]

@oncleben31 I think the dependency issue is fixed. Can you please recheck?

[oncleben31]

Good job. Dependencies seems OK.

[epenet]

@Quentame any last comment before I merge this initial commit?

[Quentame]

One comment, otherwise LGMT.

Can be merge after comment.

[epenet]

Thanks @Quentame / @oncleben31