code: def switch_to_frame(driver, frame, timeout=settings.SMALL_TIMEOUT):
      
  
      start_ms = time.time() * 1000.0
      stop_ms = start_ms + (timeout * 1000.0)
      for x in range(int(timeout * 10)):
          try:
              driver.switch_to.frame(frame)
              return True
          except NoSuchFrameException:
              now_ms = time.time() * 1000.0
              if now_ms >= stop_ms:
                  break
              time.sleep(0.1)
      raise Exception("Frame was not present after %s seconds!" % timeout)
docs: Wait for an iframe to appear, and switch to it. This should be usable
      as a drop-in replacement for driver.switch_to.frame().
      @Params
      driver - the webdriver object (required)
      frame - the frame element, name, or index
      timeout - the time to wait for the alert in seconds