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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def fas_group_member_filter(config, message, group=None, *args, **kw):
 """ Messages regarding any member of a FAS group Use this rule to include messages that have anything to do with **any user** belonging to a particular fas group. You might want to use this to monitor the activity of a group for which you are responsible. """

    if not group:
        return False
    fasusers = _get_users_of_group(config, group)
    msgusers = fmn.rules.utils.msg2usernames(message, **config)
    return bool(fasusers.intersection(msgusers))