# File lib/fog/softlayer/models/compute/server.rb, line 392
        def update(update_attributes)
          raise ArgumentError if update_attributes.nil?
          product_connection
          prices = get_item_prices_id(update_attributes)
          order = generate_upgrade_order(prices, update_attributes[:time] || update_attributes[:maintenance_window])
          @product_conn.place_order(order).body
        end