code: public BatchGetAggregateResourceConfigResult withBaseConfigurationItems(BaseConfigurationItem... baseConfigurationItems) {
          if (this.baseConfigurationItems == null) {
              setBaseConfigurationItems(new com.amazonaws.internal.SdkInternalList<BaseConfigurationItem>(baseConfigurationItems.length));
          }
          for (BaseConfigurationItem ele : baseConfigurationItems) {
              this.baseConfigurationItems.add(ele);
          }
          return this;
      }
docs: <p>
  A list that contains the current configuration of one or more resources.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setBaseConfigurationItems(java.util.Collection)} or
  {@link #withBaseConfigurationItems(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param baseConfigurationItems
  A list that contains the current configuration of one or more resources.
  @return Returns a reference to this object so that method calls can be chained together.