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* Some fixes for pytest compatibility
* The bare minimum to work with pytest-snapshot (but not be able to collect snapshots)
* Random fixes. Super basic support for pytest_sessionstart
* Support for specifying config in setup.cfg file. This is useful for e.g django: config=nomigrations
* Experimental multiprocessing tests
* A little fix for not breaking when test plugins think we have xdist
* Fixes for running in no-cache mode, and some improvements for making mutation testing faster down the line