get_group_agent()
Returns the ID of the group agent of a specified group.
Synopsis
get_group_agent(group_name)
Description
If has_group_agent = 1 in a group, then this function will return the ID of
the group agent created by FRED.
Parameters
<group_name>A valid group name.
Returns
Returns the ID of a group agent. If the specified group has no group agent,
then 0 is returned.