def resolved_flag(bag):
    """
    Check DOI flag in bag.info to see if doi_resolver has been previously run
    :param obj bag: Bag
    :return bool: Flag
    """
    if 'DOI-Resolved' in bag.info:
        logger_bagit.info("bagit resolved_flag: true")
        return True
    logger_bagit.info("bagit resolved_flag: false")
    return False