code: public DescribeEcsClustersRequest withEcsClusterArns(String... ecsClusterArns) {
          if (this.ecsClusterArns == null) {
              setEcsClusterArns(new com.amazonaws.internal.SdkInternalList<String>(ecsClusterArns.length));
          }
          for (String ele : ecsClusterArns) {
              this.ecsClusterArns.add(ele);
          }
          return this;
      }
docs: <p>
  A list of ARNs, one for each cluster to be described.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setEcsClusterArns(java.util.Collection)} or {@link #withEcsClusterArns(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param ecsClusterArns
  A list of ARNs, one for each cluster to be described.
  @return Returns a reference to this object so that method calls can be chained together.