input: 
  def create_html_form() -> str:
      """
      Creates a simple HTML form with a submit button to send information to a Python program.
  
      >>> create_html_form()
      '<form action="action.py" method="post">\\n    <input type="submit" value="Submit">\\n</form>'
      """
      return '<form action="action.py" method="post">\n    <input type="submit" value="Submit">\n</form>'
  
output:     return '<form action="action.py" method="post">\n    <input type="submit" value="Submit">\n</form>'