code: public static Expectations ltpaCookieExists(String testAction, WebClient webClient) {
          Expectations expectations = new Expectations();
          expectations.addExpectation(new CookieExpectation(testAction, webClient, JwtFatConstants.LTPA_COOKIE_NAME, ".+"));
          return expectations;
      }
docs: Sets expectations that will check:
  <ol>
  <li>The provided WebClient contains an LTPA cookie with a non-empty value
  </ol>