/**
* An expectation for checking if the given element is selected.
*
* @param mixed element_or_by Either the element or the locator.
* @return WebDriverExpectedCondition<bool> whether the element is selected.
*/
public static function elementToBeSelected($element_or_by)
{
return WebDriverExpectedCondition::elementSelectionStateToBe($element_or_by, true);
}