input: def create_html_form():
      """Generate an HTML form with a submit button to send information to a Python program.
      Example:
      for create_html_form() == '<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>'