fn get_file_decryptor(
encryption_algorithm: EncryptionAlgorithm,
footer_key_metadata: Option<&[u8]>,
file_decryption_properties: &FileDecryptionProperties,
) -> Result<FileDecryptor>
fn get_file_decryptor(
encryption_algorithm: EncryptionAlgorithm,
footer_key_metadata: Option<&[u8]>,
file_decryption_properties: &FileDecryptionProperties,
) -> Result<FileDecryptor>