GitLab

* style: Fixed typing of dataset __getitem__

* style: Fixed last missing typing
Co-authored-by: Philip Meier <github.pmeier@posteo.de>

There is a mistake in FGVCAircraft dataset documentation. If you load dataset and sum up 'trainval' and 'test' splits, there are not 10 200, but 10 000 images. Also mistake is in the number of classes: if we choose `annotation_level` to be `variant`, then unique number of classes is going to be not 102, but 100, and with `manufacturer` level it is not 41, but 30.
Co-authored-by: Nicolas Hug <contact@nicolas-hug.com>

* Change default of download for Food101 and DTD

* Set download default to False and put it at the end

* Keep stuff private

* GTSRB: train -> split. Also use pathlib

* mypy

* Remove split and partition for SUN397

* mypy

* mypy

* move download param for SST2

* Use make_dataset in SST2

* Use a base URL for GTSRB

* Let's make this code more complictaed than it needs to be because why not

* add fvgc_aircraft dataset

* add docstring & remove useless import

* resolve lint issue

* address comments

* adding more annotation level

* nit

* address comments

* Apply suggestions from code review

* unify format

* remove useless line
Co-authored-by: Philip Meier <github.pmeier@posteo.de>