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