code: public java.util.List<String> getInstanceTypeFilter() {
          if (instanceTypeFilter == null) {
              instanceTypeFilter = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return instanceTypeFilter;
      }
docs: <p>
  The set of instances in a blue/green deployment, either those in the original environment ("BLUE") or those in
  the replacement environment ("GREEN"), for which you want to view instance information.
  </p>
  
  @return The set of instances in a blue/green deployment, either those in the original environment ("BLUE") or
  those in the replacement environment ("GREEN"), for which you want to view instance information.
  @see InstanceType