code: public ServiceFuture<List<EventTypeInner>> listEventTypesAsync(String topicTypeName, final ServiceCallback<List<EventTypeInner>> serviceCallback) {
          return ServiceFuture.fromResponse(listEventTypesWithServiceResponseAsync(topicTypeName), serviceCallback);
      }
docs: List event types.
  List event types for a topic type.
  
  @param topicTypeName Name of the topic type
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object