docs: public ResponseWrapper updateSensitiveWord(String newWord, String oldWord)
              throws APIConnectionException, APIRequestException {
          Preconditions.checkArgument(newWord.length() <= 10, "one word's max length is 10");
          Preconditions.checkArgument(oldWord.length() <= 10, "one word's max length is 10");
          JsonObject jsonObject = new JsonObject();
          jsonObject.addProperty("new_word", newWord);
          jsonObject.addProperty("old_word", oldWord);
          return _httpClient.sendPut(_baseUrl + sensitiveWordPath, jsonObject.toString());
      }