Tests

gh-151950: Document `asyncio.BaseEventLoop` and fix `asyncio-extending.rst` #197524

Job	Run time
Change detection / Create context from changed files	21s
C API Docs / Check if all C APIs are documented	13s
Docs / Doctest	7m 32s
Docs / Check EPUB	2m 18s
Docs / Docs	2m 6s
WASI	0s
Emscripten	0s
Hypothesis tests on Ubuntu	0s
Android (${{ matrix.arch }})	0s
Address sanitizer	0s
Check if Autoconf files are up to date	0s
Cross build Linux	0s
Ubuntu SSL tests	0s
CIFuzz${{ '' }}	0s
iOS	0s
Windows ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Sanitizers${{ '' }}	-1s
Windows MSI${{ '' }}	-1s
Ubuntu ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }} ${{ ((fromJSON(matrix.bolt) && '(bolt)') \|\| '') }}	-1s
Check if generated files are up to date	-1s
macOS ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	-1s
Docs / Check for removed HTML IDs / Check for removed HTML IDs	2m 18s
All required checks pass	5s
	14m 48s

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