https://github.com/python/cpython/blob/23f2e8f13c4e4a34106cf96fad9329cbfbf8844d/Lib/test/test_ssl.py#L703

https://github.com/python/cpython/blob/31c9f3ced293492b38e784c17c4befe425da5dab/Lib/ssl.py#L380

https://github.com/python/cpython/blob/31c9f3ced293492b38e784c17c4befe425da5dab/Modules/_ssl.c#L5758

https://github.com/VentiFang/Python_local_module/blob/c44f55379eca2818b29732c2815480ee755ae3fb/_openssl/lib.py#L7784

ssl lib