# File lib/aws/ec2/network_interface_collection.rb, line 71 def groups_options options # accept this option a variety of different ways groups = options[:security_groups] groups ||= options[:security_group_ids] groups ||= options[:security_group] groups ||= options[:security_group_id] if groups [groups].flatten.map{|sg| sg.is_a?(SecurityGroup) ? sg.id : sg } else nil end end