code: public DescribeEcsClustersResult withEcsClusters(EcsCluster... ecsClusters) {
          if (this.ecsClusters == null) {
              setEcsClusters(new com.amazonaws.internal.SdkInternalList<EcsCluster>(ecsClusters.length));
          }
          for (EcsCluster ele : ecsClusters) {
              this.ecsClusters.add(ele);
          }
          return this;
      }
docs: <p>
  A list of <code>EcsCluster</code> objects containing the cluster descriptions.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setEcsClusters(java.util.Collection)} or {@link #withEcsClusters(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param ecsClusters
  A list of <code>EcsCluster</code> objects containing the cluster descriptions.
  @return Returns a reference to this object so that method calls can be chained together.