code: public List<IntentClassifier> listCustomPrebuiltIntents(UUID appId, String versionId) {
          return listCustomPrebuiltIntentsWithServiceResponseAsync(appId, versionId).toBlocking().single().body();
      }
docs: Gets custom prebuilt intents information of this application.
  
  @param appId The application ID.
  @param versionId The version ID.
  @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 List&lt;IntentClassifier&gt; object if successful.