text: #!/usr/bin/env python
  """
  Demonstration of a custom clipboard class.
  This requires the 'pyperclip' library to be installed.
  """
  from quo import echo
  from quo.clipboard import PyperClipboard
  from quo.prompt import Prompt
  
  session = Prompt()
  
  if __name__ == "__main__":
      print("Emacs shortcuts:")
      print("    Press Control-Y to paste from the system clipboard.")
      print("    Press Control-Space or Control-@ to enter selection mode.")
      print("    Press Control-W to cut to clipboard.")
      print("")
  
      answer = session.prompt("Give me some input: ", clipboard=PyperClipboard())
      echo(f"You said: {answer}")
  