Test

document dtype extension #4265

Job	Run time
doctests	1m 10s
py=3.11-min_deps	8m 54s
py=3.13-upstream	11m 28s
os=ubuntu-latest, py=3.11, np=2.2, deps=minimal	4m 29s
os=ubuntu-latest, py=3.11, np=1.25, deps=minimal	4m 33s
os=ubuntu-latest, py=3.12, np=2.2, deps=optional	5m 38s
os=ubuntu-latest, py=3.11, np=1.25, deps=optional	5m 45s
os=ubuntu-latest, py=3.12, np=1.25, deps=minimal	4m 43s
os=ubuntu-latest, py=3.13, np=1.25, deps=optional	8m 44s
os=ubuntu-latest, py=3.13, np=1.25, deps=minimal	7m 48s
os=ubuntu-latest, py=3.13, np=2.2, deps=minimal	5m 6s
os=windows-latest, py=3.11, np=1.25, deps=optional	8m 30s
os=windows-latest, py=3.13, np=2.2, deps=optional	8m 23s
os=ubuntu-latest, py=3.12, np=2.2, deps=minimal	4m 45s
os=ubuntu-latest, py=3.12, np=1.25, deps=optional	5m 57s
os=macos-latest, py=3.11, np=1.25, deps=optional	4m 24s
os=macos-latest, py=3.13, np=2.2, deps=optional	4m 35s
os=ubuntu-latest, py=3.11, np=2.2, deps=optional	5m 45s
os=ubuntu-latest, py=3.13, np=2.2, deps=optional	6m 35s
Test complete	2s
	1h 57m 14s

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