Test

Add typeguards to `contains` methods #35142

Job	Run time
stub_uploader tests	5m 21s
mypy: Run test cases	5m 57s
Check typeshed structure	17s
pyright: Run test cases (Windows, 3.12)	1m 21s
pyright: Run test cases (Linux, 3.13)	1m 22s
pyright: Run test cases (Linux, 3.12)	1m 20s
pyright: Run test cases (Darwin, 3.13)	1m 22s
pyright: Run test cases (Linux, 3.11)	1m 30s
pyright: Run test cases (Linux, 3.14)	1m 23s
pyright: Run test cases (Darwin, 3.11)	1m 33s
pyright: Run test cases (Windows, 3.11)	1m 24s
pyright: Run test cases (Darwin, 3.14)	1m 28s
mypy: Check stubs (linux, 3.11)	2m 29s
mypy: Check stubs (linux, 3.14)	2m 39s
pyright: Run test cases (Windows, 3.14)	1m 27s
pyright: Run test cases (Darwin, 3.12)	1m 36s
mypy: Check stubs (linux, 3.10)	2m 25s
mypy: Check stubs (linux, 3.12)	2m 49s
mypy: Check stubs (darwin, 3.12)	2m 36s
mypy: Check stubs (win32, 3.10)	2m 27s
mypy: Check stubs (win32, 3.12)	2m 22s
mypy: Check stubs (darwin, 3.10)	2m 34s
mypy: Check stubs (win32, 3.13)	2m 47s
pyright: Run test cases (Windows, 3.13)	1m 23s
mypy: Check stubs (darwin, 3.14)	2m 43s
mypy: Check stubs (darwin, 3.11)	2m 26s
mypy: Check stubs (win32, 3.14)	2m 39s
mypy: Check stubs (darwin, 3.13)	2m 56s
mypy: Check stubs (win32, 3.11)	2m 12s
mypy: Check stubs (linux, 3.13)	2m 52s
	1h 7m 40s

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