code: public int addSubList(UUID appId, String versionId, UUID clEntityId, WordListObject wordListCreateObject) {
          return addSubListWithServiceResponseAsync(appId, versionId, clEntityId, wordListCreateObject).toBlocking().single().body();
      }
docs: Adds a list to an existing closed list.
  
  @param appId The application ID.
  @param versionId The version ID.
  @param clEntityId The closed list entity extractor ID.
  @param wordListCreateObject Words list.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws ErrorResponseException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the int object if successful.