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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 set_cookie_if_ok(self, cookie, request):
 """Set a cookie if policy says it's OK to do so."""

        self._cookies_lock.acquire()
        try:
            self._policy._now = self._now = int(time.time())

            if self._policy.set_ok(cookie, request):
                self.set_cookie(cookie)


        finally:
            self._cookies_lock.release()