input: Write a function to open a web browser and render a specified web page using the given URL.
  def open_webpage(url: str) -> None:
      webbrowser.open(url)
  assert open_webpage("www.example.com")==None
  assert open_webpage("https://www.google.com")==None
output: def open_webpage(url: str) -> None:
      webbrowser.open(url)