Fires after a user has accepted a group invite.
(int) ID of the user who accepted the group invite.
(int) ID of the group being accepted to.
(int) ID of the user who invited this user to the group.
|BuddyPress 2.8.0 The $inviter_id arg was added.||BuddyPress 2.8.0 The $inviter_id arg was added.|