Retrieve the users (agents) assigned to a user group.

When to use. See which agents belong to a group. Send the group id in the path.

Parameters. fields (optional): a semicolon-separated list of user fields to return, for example id;username. When omitted, the full set of user fields is returned.

Returns. { "groupUsers": [ ... ] }, one entry per assigned user, or an empty array if the group has no users. Returns 404 if no group matches the id.

Example. GET /api/groups/5/users