AttributeError: module 'OpenSSL.crypto' has no attribute 'load_pkcs12'

[OTLabs]

I am building a package py3-certauth for Alpine Linux and got 2 deprecation errors:

=========================== short test summary info ============================
FAILED test/test_certauth.py::test_custom_not_before_not_after - AttributeError: module 'OpenSSL.crypto' has no attribute 'load_pkcs12'
FAILED test/test_certauth.py::test_ca_cert_in_mem - AttributeError: module 'OpenSSL.crypto' has no attribute 'load_pkcs12'
=========== 2 failed, 17 passed, 1 deselected, 31 warnings in 2.03s ============
>>> ERROR: py3-certauth: check failed