def piece_hashes(file_hash, file_and_metadata_hash):
    """
    Pair of hashes mocking the file hash and file + metadata hash.

    Args:
        file_hash: hash of the file (mock)
        file_and_metadata_hash: hash of the file and its metadata (mock)

    Returns:
        Tuple([str]): ``file_hash`` and ``file_and_metadata_hash``

    """
    return file_hash, file_and_metadata_hash