code: @Override
      public java.util.concurrent.Future<GetTopicAttributesResult> getTopicAttributesAsync(String topicArn,
              com.amazonaws.handlers.AsyncHandler<GetTopicAttributesRequest, GetTopicAttributesResult> asyncHandler) {
  
          return getTopicAttributesAsync(new GetTopicAttributesRequest().withTopicArn(topicArn), asyncHandler);
      }
docs: Simplified method form for invoking the GetTopicAttributes operation with an AsyncHandler.
  
  @see #getTopicAttributesAsync(GetTopicAttributesRequest, com.amazonaws.handlers.AsyncHandler)