def add_sub_list(app_id, version_id, cl_entity_id, word_list_create_object, custom_headers:nil)
      response = add_sub_list_async(app_id, version_id, cl_entity_id, word_list_create_object, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
def add_sub_list(app_id, version_id, cl_entity_id, word_list_create_object, custom_headers:nil)
      response = add_sub_list_async(app_id, version_id, cl_entity_id, word_list_create_object, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
Adds a sublist to an existing list entity in a version of the application.

 @param app_id The application ID.
 @param version_id [String] The version ID.
 @param cl_entity_id The list entity extractor ID.
 @param word_list_create_object [WordListObject] Words list.
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.

 @return [Bignum] operation results.