code: def open_fake_page(self, page_text, url=None, soup_config=None):
          
          soup_config = soup_config or self.soup_config
          self.__state = _BrowserState(
              page=bs4.BeautifulSoup(page_text, **soup_config),
              url=url)
docs: Mock version of :func:`open`.
  
          Behave as if opening a page whose text is ``page_text``, but do not
          perform any network access. If ``url`` is set, pretend it is the page's
          URL. Useful mainly for testing.