old_contents: """Using jsonrpcserver's built-in serve() function"""
  from jsonrpcserver import method, serve
  
  
  @method
  def ping():
      return "pong"
  
  
  if __name__ == "__main__":
      serve()
  
new_contents: """Using jsonrpcserver's built-in serve() function"""
  from jsonrpcserver import Success, method, serve
  
  
  @method
  def ping():
      return Success("pong")
  
  
  if __name__ == "__main__":
      serve()
  
subject: Update examples/jsonrpcserver_server.py to v5