<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 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)