Test

adjust contextlib.nullcontext.init signature to fix divergences in type checkers #35183

Job	Run time
mypy: Run test cases	5m 44s
stub_uploader tests	4m 55s
Check typeshed structure	12s
pyright: Run test cases (Linux, 3.13)	1m 33s
pyright: Run test cases (Darwin, 3.11)	1m 19s
pyright: Run test cases (Darwin, 3.14)	1m 19s
pyright: Run test cases (Linux, 3.14)	1m 28s
pyright: Run test cases (Darwin, 3.13)	1m 20s
pyright: Run test cases (Windows, 3.11)	1m 22s
mypy: Check stubs (linux, 3.11)	2m 23s
mypy: Check stubs (darwin, 3.10)	2m 41s
mypy: Check stubs (linux, 3.10)	2m 41s
pyright: Run test cases (Linux, 3.12)	1m 25s
mypy: Check stubs (win32, 3.12)	2m 53s
mypy: Check stubs (linux, 3.13)	2m 46s
mypy: Check stubs (darwin, 3.13)	2m 47s
mypy: Check stubs (linux, 3.14)	2m 50s
mypy: Check stubs (win32, 3.11)	2m 21s
pyright: Run test cases (Linux, 3.11)	1m 16s
pyright: Run test cases (Windows, 3.14)	1m 35s
pyright: Run test cases (Windows, 3.13)	1m 30s
mypy: Check stubs (win32, 3.14)	2m 23s
mypy: Check stubs (linux, 3.12)	2m 26s
mypy: Check stubs (darwin, 3.14)	3m 12s
pyright: Run test cases (Darwin, 3.12)	1m 23s
mypy: Check stubs (win32, 3.13)	2m 49s
pyright: Run test cases (Windows, 3.12)	1m 23s
mypy: Check stubs (win32, 3.10)	2m 40s
mypy: Check stubs (darwin, 3.11)	2m 27s
mypy: Check stubs (darwin, 3.12)	2m 35s
	1h 7m 38s

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