code: private Response assertOutdatedStatus(boolean outdated) throws JSONException {
          Response response = httpGet("keys/" + keyName);
          JSONObject actual = new JSONObject(response.asString());
          Assertions.assertThat(actual.getBoolean("outdated")).isEqualTo(outdated);
          return response;
      }
docs: Checks the outdated state of the key.
  
  @param outdated expected value
  @return true if outdated state of the key corresponding to the outdated param