docs: def create_server(addr, port, backlog):
      """
      Set up a TCP server and installs the basic handles Stdin, Stdout in the
      clients.
  
      Example:    
  
      def send_data(server, client):
          # No need to install Stdin or Stdout.
          client.dump('foo bar!')
  
      server = create_server('0.0.0.0', 1024, 50)
      xmap(server, on_accept, send_data)
      """
  
      server = Spin()
      server.bind((addr, port))
      server.listen(backlog)
      Server(server)
      server.add_map(ACCEPT, lambda server, spin: install_basic_handles(spin))
      return server