code: @Override
      public java.util.concurrent.Future<CreateStreamResult> createStreamAsync(String streamName, Integer shardCount,
              com.amazonaws.handlers.AsyncHandler<CreateStreamRequest, CreateStreamResult> asyncHandler) {
  
          return createStreamAsync(new CreateStreamRequest().withStreamName(streamName).withShardCount(shardCount), asyncHandler);
      }
docs: Simplified method form for invoking the CreateStream operation with an AsyncHandler.
  
  @see #createStreamAsync(CreateStreamRequest, com.amazonaws.handlers.AsyncHandler)