selenium delay
is_disappeared = WebDriverWait(drv, 30, 1,
ignored_exceptions=TimeoutException).\
until(lambda x: x.find_element_by_id("leftSiteMapTree_58_span").is_displayed())
is_disappeared = WebDriverWait(drv, 30, 1,
ignored_exceptions=TimeoutException).\
until(lambda x: x.find_element_by_id("leftSiteMapTree_58_span").is_displayed())