docs: def wait_for_element_not_present(self, locator):
          """
          Synchronization helper to wait until some element is removed from the page
  
          :raises: ElementVisiblityTimeout
          """
          for i in range(timeout_seconds):
              if self.driver.is_element_present(locator):
                  time.sleep(1)
              else:
                  break
          else:
              raise ElementVisiblityTimeout("%s presence timed out" % locator)
          return True