# File lib/rudy/cli/aws/ec2/instances.rb, line 14
14:     def instances_create_valid?
15:       
16:       raise "Cannot supply an instance ID" if @option.instid
17:       
18:       if @option.group
19:         unless Rudy::AWS::EC2::Groups.exists?(@option.group)
20:           raise "Group #{@option.group} does not exist"
21:         end
22:       end
23:       
24:       true
25:     end