get_ssl_context ValueError: too many values to unpack (expected 7)

 [2021/08/24 15:52:28.096] ERROR: test_automatic (test_encryption.TestAzureEncryption)

 [2021/08/24 15:52:28.096] ----------------------------------------------------------------------

 [2021/08/24 15:52:28.096] Traceback (most recent call last):

 [2021/08/24 15:52:28.096]   File "/data/mci/de685763625e72294754b6cd2eb6525e/src/pymongo/encryption.py", line 77, in _wrap_encryption_errors

 [2021/08/24 15:52:28.096]     yield

 [2021/08/24 15:52:28.096]   File "/data/mci/de685763625e72294754b6cd2eb6525e/src/pymongo/encryption.py", line 321, in encrypt

 [2021/08/24 15:52:28.096]     encrypted_cmd = self._auto_encrypter.encrypt(database, encoded_cmd)

 [2021/08/24 15:52:28.096]   File "/data/mci/de685763625e72294754b6cd2eb6525e/src/venv-encryption/lib/python3.9/site-packages/pymongocrypt/auto_encrypter.py", line 44, in encrypt

 [2021/08/24 15:52:28.096]     return run_state_machine(ctx, self.callback)

 [2021/08/24 15:52:28.096]   File "/data/mci/de685763625e72294754b6cd2eb6525e/src/venv-encryption/lib/python3.9/site-packages/pymongocrypt/state_machine.py", line 150, in run_state_machine

 [2021/08/24 15:52:28.096]     callback.kms_request(kms_ctx)

 [2021/08/24 15:52:28.096]   File "/data/mci/de685763625e72294754b6cd2eb6525e/src/pymongo/encryption.py", line 116, in kms_request

 [2021/08/24 15:52:28.096]     ctx = get_ssl_context(

 [2021/08/24 15:52:28.096]   File "/data/mci/de685763625e72294754b6cd2eb6525e/src/pymongo/ssl_support.py", line 45, in get_ssl_context

 [2021/08/24 15:52:28.096]     (certfile,

 [2021/08/24 15:52:28.096] ValueError: too many values to unpack (expected 7)