old_contents: #!/usr/bin/env python
  
  from protocol.interface import NetworkInterface
  from manager.manager import Manager
  
  sign = NetworkInterface()
  manager = Manager(sign)
  manager.run()
  
new_contents: #!/usr/bin/env python
  
  from protocol.interface import NetworkInterface
  from manager.manager import Manager
  from protocol.special import TimeOfDay, DayOfWeek
  
  sign = NetworkInterface()
  
  # set current time
  sign.send(TimeOfDay())
  sign.send(DayOfWeek())
  
  # run plugins
  manager = Manager(sign)
  manager.run()
  
subject: refresh sign time when script is run