Tests

Fix is_different #41

Job	Run time
test_pre_commit	31s
coverage	1m 12s
setup (ubuntu-latest)	32s
pytest (3.8, py38, ubuntu-latest)	1m 12s
pytest (3.8, py38, windows-latest)	2m 52s
pytest (3.8, py38, macos-latest)	1m 44s
setup (windows-latest)	1m 53s
setup (macos-latest)	28s
pytest (3.9, py39, ubuntu-latest)	1m 20s
pytest (3.9, py39, windows-latest)	2m 28s
pytest (3.9, py39, macos-latest)	1m 4s
pytest (3.10, py310, ubuntu-latest)	1m 3s
pytest (3.10, py310, windows-latest)	2m 48s
pytest (3.10, py310, macos-latest)	55s
pytest (3.11, py311, ubuntu-latest)	1m 9s
pytest (3.11, py311, windows-latest)	2m 45s
pytest (3.11, py311, macos-latest)	53s
pytest (ubuntu-latest, 3.8, tensorflow-27)	1m 17s
pytest (ubuntu-latest, 3.9, tensorflow-28)	1m 12s
pytest (ubuntu-latest, 3.10, tensorflow-29)	1m 4s
pytest (ubuntu-latest, 3.10, tensorflow-210)	1m 12s
pytest (ubuntu-latest, 3.10, tensorflow-211)	1m 5s
pytest (ubuntu-latest, 3.9, numpy-120)	45s
pytest (ubuntu-latest, 3.10, numpy-121)	50s
pytest (ubuntu-latest, 3.10, numpy-123)	47s
pytest (ubuntu-latest, 3.11, numpy-124)	48s
	33m 49s

Provide feedback