[Python] CryptographyDeprecationWarning: Curve argument must be an instance of an...

I'm currently working with the AWS Encryption SDK to encrypt a file using a KMS keyring. However, I've run into an error that states:

CryptographyDeprecationWarning: Curve argument must be an instance of an EllipticCurve class. Did you pass a class by mistake?
This will be an exception in a future version of cryptography. private_key = ec.generate_private_key(...)
AttributeError: 'Error_Opaque' object has no attribute 'message'


I am using the latest versions of all related libraries and tools. Has anyone else encountered this issue, and if so, how did you resolve it?

my code

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