* validation_func docstring
* torch,tf compatibility+tests
* keras test
* skip tests if python < 3.7
* pytorch numpy int bug on windows
* make tensorflow test work on windows
* move tf env variable setting
* pytorch test increase epochs
* install cpu-tensorflow on windows CI
* torch test optimizer to adam
* fix bugs in shuffled TF dataset
* dummy unit test for TF on windows
* dummy code for TF windows testing
* deal with np.int bug on windows
* remove windows debugging code
* docstrings for new functionality
* address merge conflicts
* reformat after merge
* addressed comments
Our package doesn't have type annotations everywhere, so we can't use
mypy in strict mode just yet. Still, adding type checking in CI is
valuable, so we don't have unchecked annotations in our code.
This patch includes basic fixes to make type checking pass, including
switching the incorrect `np.array` type annotation for `np.ndarray` and
adding some assertions for flow-sensitive typing.
The issue that was introduced in coverage 6.3 has been fixed:
https://github.com/nedbat/coveragepy/issues/1310#issuecomment-1129894701.
We can't just upgrade to `coverage` or `coverage>=6.4` because the
former could install bad versions of coverage (e.g. 6.3), and the latter
is unsupported on Python 3.6, which we want to continue supporting.
This patch just bans coverage 6.3 / 6.3.x, so with Python 3.7+, we'll
use the latest version of coverage, and with Python 3.6, we'll use the
latest supported version of coverage that's not a 6.3 release.
Ilnar