# File lib/aws/ec2/network_interface/attachment.rb, line 21
        def initialize network_interface, details
          @network_interface = network_interface
          @attachment_id = details.attachment_id
          @instance = Instance.new(details.instance_id, 
            :owner_id => details.instance_owner_id,
            :config => network_interface.config)
          @instance_owner_id = details.instance_owner_id
          @device_index = details.device_index
          @status = details.status.to_sym
          @attach_time = details.attach_time
          @delete_on_termination = details.delete_on_termination?
        end