code: public DescribeDeliveryChannelsResult withDeliveryChannels(DeliveryChannel... deliveryChannels) {
          if (this.deliveryChannels == null) {
              setDeliveryChannels(new com.amazonaws.internal.SdkInternalList<DeliveryChannel>(deliveryChannels.length));
          }
          for (DeliveryChannel ele : deliveryChannels) {
              this.deliveryChannels.add(ele);
          }
          return this;
      }
docs: <p>
  A list that contains the descriptions of the specified delivery channel.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setDeliveryChannels(java.util.Collection)} or {@link #withDeliveryChannels(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param deliveryChannels
  A list that contains the descriptions of the specified delivery channel.
  @return Returns a reference to this object so that method calls can be chained together.