29     def __init__(self, arn):  argument
30         self.arn = arn
31         self.client = boto3.client('kms')
32         response = self.client.get_public_key(KeyId=self.arn)
35         self.public_key = serialization.load_der_public_key(
39     def key_size(self):  argument
40         return self.public_key.key_size
42     def public_key(self) -> RSAPublicKey:  argument
43         return self.public_key
45     def sign(self, data: bytes, padding: AsymmetricPadding,  argument
73         response = self.client.sign(
74                 KeyId=self.arn, Message=data,
82         self, padding: AsymmetricPadding, algorithm: hashes.HashAlgorithm  argument
86     def decrypt(self, ciphertext: bytes, padding: AsymmetricPadding) -> bytes:  argument
89     def private_numbers(self) -> RSAPrivateNumbers:  argument
93         self,  argument