class DiffScriptBackupWriter implements BackupWriter {

    @Override
    public void writeBytes(byte[] bytes) throws IOException {
        for (byte b : bytes) {
            mWriter.writeByte(b);
        }

        mBytesWritten += bytes.length;
    }

    @VisibleForTesting  DiffScriptBackupWriter(SingleStreamDiffScriptWriter writer);

}