# 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