code: public StreamDescription withShards(Shard... shards) {
          if (this.shards == null) {
              setShards(new java.util.ArrayList<Shard>(shards.length));
          }
          for (Shard ele : shards) {
              this.shards.add(ele);
          }
          return this;
      }
docs: <p>
  The shards that comprise the stream.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setShards(java.util.Collection)} or {@link #withShards(java.util.Collection)} if you want to override the
  existing values.
  </p>
  
  @param shards
  The shards that comprise the stream.
  @return Returns a reference to this object so that method calls can be chained together.