Multi-select any number of elements.

        :param elements_to_select: list of WebElement instances
        :return: None

def multi_select(self, elements_to_select):
        """
        Multi-select any number of elements.

        :param elements_to_select: list of WebElement instances
        :return: None
        """
        # Click the first element
        first_element = elements_to_select.pop()
        self.click(first_element)

        # Click the rest
        for index, element in enumerate(elements_to_select, start=1):
            self.multi_click(element)