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* add ufmt as code formatter

* cleanup

* quote ufmt requirement

* split imports into more groups

* regenerate circleci config

* fix CI

* clarify local testing utils section

* use ufmt pre-commit hook

* split relative imports into local category

* Revert "split relative imports into local category"

This reverts commit f2e224cde2008c56c9347c1f69746d39065cdd51.

* pin black and usort dependencies

* fix local test utils detection

* fix ufmt rev

* add reference utils to local category

* fix usort config

* remove custom categories sorting

* Run pre-commit without fixing flake8

* got a double import in merge
Co-authored-by: Nicolas Hug <nicolashug@fb.com>

Revert "Change the `SUM_OF_PRETRAINED_RESNET18_PARAMS` decimal values to resolve broken tests. (#2978)" (#2990)

This reverts commit 1f4e3a46.

Updated all raw asserts to corresponding unittest.TestCase.assert. See #1483

* Add Hub tests in torchvision

* Run test_hub in its own interpreter