docs: public ResponseWrapper addSensitiveWords(String...words) throws APIConnectionException, APIRequestException {
          JsonArray array = new JsonArray();
          for (String word: words) {
              Preconditions.checkArgument(word.length() <= 10, "one word's max length is 10");
              array.add(new JsonPrimitive(word));
          }
          return _httpClient.sendPost(_baseUrl + sensitiveWordPath, array.toString());
      }