code: def assert_element_visible(self, selector, by=By.CSS_SELECTOR,
                                 timeout=settings.SMALL_TIMEOUT):
          
          if self.timeout_multiplier and timeout == settings.SMALL_TIMEOUT:
              timeout = self.__get_new_timeout(timeout)
          self.assert_element(selector, by=by, timeout=timeout)
          return True
docs: Same as self.assert_element()
              As above, will raise an exception if nothing can be found.