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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def from_der_private_key(data: bytes, password: Optional[str] = None) -> _RSAPrivateKey: """ Convert private key in DER encoding to a Private key object :param data: private key bytes :param password: password the private key is encrypted with """

        return serialization.load_der_private_key(data, password, default_backend())