code: def find_excluded(excluded)
        result = []
        Array(excluded).each do |exclude|
          if exclude.include?(':')
            find_labeled(exclude).each { |x| result << x }
            next
          end
          res = Client.get_server(exclude)
          result << res['id'] if res
        end
        result
      end
docs: => Find Servers which should be excluded from Management