docs: public ListShardsResult withShards(Shard... shards) {
          if (this.shards == null) {
              setShards(new com.amazonaws.internal.SdkInternalList<Shard>(shards.length));
          }
          for (Shard ele : shards) {
              this.shards.add(ele);
          }
          return this;
      }