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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def wait_until_jquery_requests_are_closed(self, timeout=None):
 """Waits for AJAX requests made through @type timeout: int @param timeout: the maximum number of seconds the driver will wait before timing out @return: None """

        timeout = timeout if timeout is not None else self.timeout

        def wait():
            '''
            Wait function passed to executor
            '''
            WebDriverWait(self.driver, timeout).until(
                lambda d: self.js_executor.execute_template('isJqueryAjaxComplete', {}))
            return True

        return self.execute_and_handle_webdriver_exceptions(
            wait, timeout, None, 'Timeout waiting for all jQuery AJAX requests to close')