import uuid


def high_low_2_uuid(uuid_high, uuid_low):
    """Combine high and low bits of a split UUID.

    :param uuid_high: The high 64 bits of the UUID.
    :type uuid_high: int
    :param uuid_low: The low 64 bits of the UUID.
    :type uuid_low: int
    :return: The UUID.
    :rtype: :py:class:`uuid.UUID`

    """
    return uuid.UUID(int=(uuid_high << 64) + uuid_low)