Agent predicate that checks if an agent is skipping attendance for a group.
Action rule performed by an agent. Returns
False if the agent is a member
of the specified group (e.g. place or network) type and is currently in an
attending state with respect to the group type. Returns
True if the agent
is skipping attendance or if the agent is not a member of the group.
The group being checked.
attend(), is_group_agent(), is_at(), is_member(), join(), quit(), skip()