def METHOD_NAME(self, error_users, success_users):
    """ Log and overview of the results of the command. """
    total_users = len(success_users) + len(error_users)
    logger.info('Successfully updated %i out of %i users', len(success_users), total_users)
    if len(error_users) > 0:
        logger.info('The following %i user(s) not saved:', len(error_users))
        for user, error in error_users:
            logger.info('user: [%s] reason: [%s] %s', user, type(error).__name__, str(error))