text: #!/usr/bin/env python 3
  # -*- coding: utf-8 -*-
  
  #
  # Copyright (c) 2020 PanXu, Inc. All Rights Reserved
  #
  """
  brief
  
  Authors: PanXu
  Date:    2020/10/13 21:17:00
  """
  
  class YClass:
  
      def f(self, x):
          print(x.value)
  
  
  
  