'Verify if the element is not present in the current page by xpath,
and wait the specified time in ``wait_time``.
Returns True if the element is not present and False if is present.'

def is_element_not_present_by_xpath(self, xpath, wait_time=None):

    raise NotImplementedError(("%s    doesn't    support    verifying    if    element    is    not    present    by    xpath" % self.driver_name))
