code: public OrderableDBInstanceOption withAvailableProcessorFeatures(AvailableProcessorFeature... availableProcessorFeatures) {
          if (this.availableProcessorFeatures == null) {
              setAvailableProcessorFeatures(new com.amazonaws.internal.SdkInternalList<AvailableProcessorFeature>(availableProcessorFeatures.length));
          }
          for (AvailableProcessorFeature ele : availableProcessorFeatures) {
              this.availableProcessorFeatures.add(ele);
          }
          return this;
      }
docs: <p>
  A list of the available processor features for the DB instance class of a DB instance.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setAvailableProcessorFeatures(java.util.Collection)} or
  {@link #withAvailableProcessorFeatures(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param availableProcessorFeatures
  A list of the available processor features for the DB instance class of a DB instance.
  @return Returns a reference to this object so that method calls can be chained together.