-- | One or more security groups.
rGroups :: Lens' Reservation [GroupIdentifier]
rGroups = lens _rGroups (\s a -> s { _rGroups = a }) . _List
rGroups :: Lens' Reservation [GroupIdentifier]
rGroups = lens _rGroups (\s a -> s { _rGroups = a }) . _List
rGroups = lens _rGroups (\s a -> s { _rGroups = a }) . _List