Test

Improve docstrings of `build`/`create` classmethods #638

Job	Run time
Python 3.8, Database sqlite	1m 30s
Python 3.8, Database postgres	1m 26s
Python 3.9, Database sqlite	1m 36s
Python 3.9, Database postgres	1m 32s
Python 3.10, Database sqlite	2m 23s
Python 3.10, Database postgres	2m 19s
Python 3.11, Database sqlite	1m 47s
Python 3.11, Database postgres	1m 46s
Python 3.12, Database sqlite	1m 34s
Python 3.12, Database postgres	1m 25s
Python pypy-3.9, Database sqlite	3m 18s
Python pypy-3.9, Database postgres	2m 55s
Python pypy-3.10, Database sqlite	3m 45s
Python pypy-3.10, Database postgres	2m 28s
	29m 44s

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