code: @Override
      public java.util.concurrent.Future<MergeShardsResult> mergeShardsAsync(String streamName, String shardToMerge, String adjacentShardToMerge) {
  
          return mergeShardsAsync(new MergeShardsRequest().withStreamName(streamName).withShardToMerge(shardToMerge)
                  .withAdjacentShardToMerge(adjacentShardToMerge));
      }
docs: Simplified method form for invoking the MergeShards operation.
  
  @see #mergeShardsAsync(MergeShardsRequest)