tests

Backend rewrite for v1.0 #403

Job	Run time
Code Quality	46s
Build distribution and test installation	1m 13s
Docs preview	44s
Tests (ubuntu-latest, Python 3.8)	49s
Tests (ubuntu-latest, Python 3.9)	55s
Tests (ubuntu-latest, Python 3.10)	52s
Tests (ubuntu-latest, Python 3.11)	53s
Tests (ubuntu-latest, Python 3.12)	51s
Tests (macos-latest, Python 3.8)	1m 48s
Tests (macos-latest, Python 3.9)	2m 15s
Tests (macos-latest, Python 3.10)	1m 48s
Tests (macos-latest, Python 3.11)	1m 39s
Tests (macos-latest, Python 3.12)	1m 43s
Tests (windows-latest, Python 3.8)	3m 30s
Tests (windows-latest, Python 3.9)	3m 29s
Tests (windows-latest, Python 3.10)	3m 17s
Tests (windows-latest, Python 3.11)	3m 23s
Tests (windows-latest, Python 3.12)	3m 23s
Notify failed build	0s
	33m 18s

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